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Circuit Protection
Fairchild Semiconductor Announces Over-Voltage Protection Device with USB/Charger-Detection for Portable ApplicationsFairchild Semiconductor offers designers of cell phones and handheld mobile products a device with highly integrated over-voltage protection (OVP) as well as USB/charger-detection capabilities. The newest member of Fairchild's OVP family, the FAN3988, allows the end user the flexibility to select an external P-Channel MOSFET with the specific on-resistance and current capability required by the application.
Fairchild Semiconductor Expands 3.3V Optocoupler SelectionFairchild Semiconductor has developed 3.3V optocoupler products that offer excellent isolation, strong noise immunity and superior performance over a wide temperature range (up to 110şC). Industrial applications operate in harsh environments where electrical signals are processed in the presence of transients or continuous high voltages. Isolators, such as optocouplers, are instrumental in avoiding downtime from unexpected errors due to noise. These optocouplers help industrial designers create robust systems with low transmission error rates, low system failure rates and proven reliability over extended periods of time.
STMicroelectronics Proves Performance Advantage with Silicon Protection Diodes Specified to International Surge Standard IEC 61000-4-5STMicroelectronics has announced the first silicon surge protectors meeting international surge-protection standard IEC 61000-4-5, with a family of devices delivering high reliability and effective protection throughout the entire operating-temperature range. California Micro Devices Launches LuxGuard High Voltage ESD Protection Diodes for HBLEDsCalifornia Micro Devices today announced the latest products in the LuxGuard™ family of turnkey solutions for ESD (electrostatic discharge) protection and thermal management for high power, high brightness light emitting diode (HBLED) lighting applications. The new LuxGuard CM1753 and CM1754 feature a 50 volt breakdown voltage specification and deliver a robust 8kV HBM (Human Body Model) of ESD protection with low input capacitance for high power, high efficacy HBLED lighting applications. Designed as silicon based side mount ESD protectors, the CM1753 is designed for P-up common cathode configurations and CM1754 provides identical protection for N-up common anode configurations. Their tiny form factor enables them to be used in all applications, including existing HBLED lamp modules with the number of LEDs in the string ranging from 1 to 15. California Micro Devices Claims Industry's Smallest ESD Protection Device for Mobile HandsetsCalifornia Micro Devices announced the CM1242-33CP, first in a family of extremely small outline ESD (electrostatic discharge) protection devices. Establishing new industry benchmarks for ESD performance and small solution form factor, the CM1242 is an ideal solution for space constrained applications in multimedia smart phones, netbooks and MIDs (mobile internet devices), e-book readers and personal media players. The device provides a single channel of bi-directional ±30kV contact ESD protection in a very compact outline (0.6 mm x 0.3mm). California Micro Devices Introduces New Ultra Low Capacitance ESD Protection DeviceCalifornia Micro Devices today announced the PicoGuard CM1227, an ultra low capacitance electrostatic discharge (ESD) device for the latest digital consumer and computer applications. The CM1227 provides four channels of ±15kV of contact ESD protection, exceeding IEC61000-4-2 level 4 standards. Today's latest digital consumer and computing applications such as digital TVs, set top boxes, PCs and PC peripherals are increasingly adopting advanced high speed serial interfaces such as USB3.0, MIPI, eSATA, DisplayPort and FireWire.
Over-Current Protection for Primary and Secondary CircuitsIn niche markets with limited space, customers often look for a solution where SMD fuses should be replacable without soldering. The successful standard UMT 250 has been extended for this reason with a clip option.
MAX14523A/B/C: Programmable Current-Limit Switches Protect Host Devices from Faulty LoadsMaxim has introduced the MAX14523A/MAX14523B/MAX14523C, a family of adjustable current-limit switches. These overcurrent limiters offer a ±10% accurate current limit that can be programmed from 250mA to 1500mA with an external resistor.
1500W Surface-Mount TransZorb TVS with Breakdown Voltages from 6.7 V to 42.4 VVishay Intertechnology today announced a new series of 1500-W surface-mount TransZorb® transient voltage suppressors (TVS) with an industry low profile of 1.1 mm. The SMPC series offers breakdown voltages from 6.7 V to 42.4 V and excellent clamping capability from 10.0 V to 58.1 V. Avago Technologies - Energy Efficient 1MBd Digital Optocoupler for Signal Isolation InterfacesAvago Technologies claims the industry's most energy efficient 1MBd digital optocoupler. Avago's compact low power ACPL-M50L single channel optocoupler, which operates on approximately 80 percent less drive current than today's standard 1MBd digital optocouplers, targets designers of communication interfaces, microcontroller system interfaces, switching power supplies, and digital isolation for A/D, D/A conversion applications. Epcos CeraDiodes from TTI protect against ESDTTI Inc., is now stocking a new range of devices for the ESD protection of data, audio and video lines (e.g. USB, Ethernet, IEEE 1394 and HDMI), analogue and digital connections, ICs and inputs/outputs in electronic equipment. CeraDiodes - ceramic multilayer semiconductor components from Epcos - are a cost-effective alternative to ESD protection components based on semiconductors such as Zener and TVS diodes, and are also, claims TTI, technically superior. In many cases, the bidirectional CeraDiodes can directly replace semiconductor ESD diodes with respect to form, fit and function.
Tyco Electronics Expands Polyswitch Portfolio With New 0603 DeviceTyco Electronics announced today the addition of a new industry-standard 0603 device to its popular line of surface-mount PolySwitch devices. The femtoSMDC016F device consumes less than half the board space of prior-generation devices and helps protect sensitive electronics from damage caused by overcurrent and overtemperature events. The device's fast time-to-trip and resettable functionality can help manufacturers reduce warranty costs and improve reliability of portable electronics.
Campbell Collins - Transient Protection Modules from Gaia for Hi-Rel ApplicationsCampbell Collins Ltd offers the PGDS-50 and LGDS-300 Transient Protection Modules from Gaia Converter to the UK marketplace. These Hi-Rel Grade Transient Suppression Modules are complementary products to Gaia's wide range of DC/DC converters and input filters, enabling customers to quickly and elegantly create complete power supply solutions.
75V Low-side Intelligent Power Switches for Harsh 24V Automotive EnvironmentsInternational Rectifier has introduced the AUIPS2051L and AUIPS2052G 75V low-side intelligent power switches (IPS) for harsh 24V automotive environments including truck junction box applications. The AUIPS2051L and AUIPS2052G feature a 70V active clamp and provide a comprehensive set of protection features. The devices shut down in the event of over-temperature or over-current conditions, restarting once the input is turned off and turned on again, and provide the diagnostic information via a serial resistor connected to the input pin. Furthermore, the AUIPS205x family is designed using IR's 75V technology making them well suited to any 24V automotive loads such as solenoids or as electromechanical relay replacements.
Isolator sections with 100 kA short circuit resistanceRittal has significantly extended its Ri4Power range for low-voltage switchgear, with the development of new isolator sections. The isolator section layout is based on the familiar components of the Ri4Power system. In tests, the highest configuration variant with complete side panel modules and bar covers achieved internal form separation of up to Form 4b. Depending on the number of cables to be connected, the new Rittal isolator sections are available in section widths of 1000 and 1200 mm, offering a connection space width of approximately 300 and 500 mm respectively.
Semtech Extends MicroClamp Platform with Industry’s First 2.5V Protection DevicesSemtech Corp has announced the uClamp2501T and uClamp2511T, 2.5V single-line MicroClamp transient voltage suppression (TVS) devices. These TVS devices are targeted at the one of the fastest growing mobile phone markets - multimedia smart phones with touchscreens, docking ports, memory slots and other interfaces that open the possibility of potential damage from ElectroStatic Discharge (ESD).
Murata - Low capacitance electrostatic discharge protection devicesMurata has introduced the LXES series of ceramic and silicon based ESD protection devices. Both types feature high suppression levels, high repetition durability and ultra-low capacitance for use in high speed data transmission environments. ESD protection devices are critical components in protecting sensitive circuits in electronic equipment such as mobile phones, notebook PCs and netbooks, digital cameras and other consumer devices from electrostatic discharge (ESD).
Tiny ESD-Protection Array Guards High-Speed Data Interfaces in Portable DevicesMaxim Integrated Products has introduced the MAX14541E, a diode array that protects 3-channel data interfaces from ESD spikes up to ±15kV (Human Body Model). A low input capacitance of 6pF (typ) prevents signal distortion in high-speed applications.
Vishay - 1500W Surface-Mount Automotive TVS in low profile TO-277A PackageVishay Intertechnology has announced a new series of 1500W surface-mount automotive transient voltage suppressors (TVS) with the industry's lowest profile of 1.1 mm, and breakdown voltages from 6.8 V to 43 V. Featuring the eSMP TO-277A package, the TPC series offers a 27 % smaller footprint than devices in the traditional SMC package. Keko Varicon High Energy VaristorsThe ZOV Series is a series of high-energy varistors. There are two groups in this series. One consists of standard sized surge shaped varistors and the other is of full custom parameter designed varistors, with these, customers are offered the opportunity to design the optimum varistor with the minimum dimensions to satisfy their own specific application.
Avago Technologies - Ultra-Low Power Optocouplers for Use in Optical Isolation ApplicationsAvago Technologies has announced that it has developed a new family of ultra-low power optocouplers that will pave the way for a new generation of optical isolators that can operate on approximately 90 percent less power than today's standard optocouplers. Utilizing a unique integrated circuit design and thick insulation material, Avago's innovative ACPL-M61L/061L/064L/W61L/K64L optocouplers offer a significant reduction in power requirements without compromising isolation and insulation performance. These digital optocouplers also provide good high voltage performance over the lifetime of the product while meeting the requirements of safe insulation for reinforced applications.
AVX develops application specific multilayer varistor seriesAVX Corporation, a leading manufacturer of advanced passive components and interconnect solutions, has developed application specific multilayer varistors for automotive, industrial, military, mobile handset, telecommunication, heavy equipment, appliance, and consumer product applications. AVX can also design and manufacture custom varistors if the design requires specific performance and environmental characteristics not available in the standard product offering.
MLVs from AVX combine transient clamping and EMI filtering in one deviceAVX Corporation offers designers the ability to clamp transients and filter EMI in one ultra compact device with the expansion of its Transguard multilayer varistor series. Designed for all small handheld devices, the miniature 0201 bi-directional transient voltage suppressor provides minimal signal distortion and low insertion loss. CamdenBoss - New range of powerfusesCamdenBoss has introduced a new range of powerfuses for protecting semiconductors, motors and general power conductor applications. The new CamdenBoss Powerfuse range includes aR semiconductor fuses in 8.5 x 31.5mm and 10 x 38mm sizes, aM motor circuit protection fuses in 8.5 x 31.5mm sizes and gG general fuses in 8.5 x 31.5mm and 10 x 38mm sizes. Digi-Key and Cooper Bussmann Expand Distribution AgreementElectronic component distributor Digi-Key has announced today the expansion of its distribution agreement with Cooper Bussmann from a North American agreement to a global agreement.
AVX Expands Transguard Series to Include Miniature Multilayer VaristorsAVX offers designers the ability to clamp transients and filter EMI in one ultra compact device with the expansion of its Transguard multilayer varistor series. Designed for all small handheld devices, the miniature 0201 bi-directional transient voltage suppressor provides minimal signal distortion and low insertion loss. Roxburgh EMC filters up-rated to UL1449 Third EditionDEM Manufacturing has uprated its MIF range of EMI filters in line with the Standard UL 1449 Third Edition, six months ahead of the standard coming into force, ensuring that these components offer superior surge and transient protection with immediate effect.
Cost-saving customised circuit protection systemsE-T-A Circuit Breakers offers a bespoke systems service designed to facilitate the installation and use of E-T-A circuit protection products in a wide range of applications covering manufacturing and process control, and including the telecommunications, petro-chemical, pharmaceutical, aerospace and defence industries. The customised service involves designing solutions in conjunction with the customer and building them fully interconnected to an agreed schedule. Recent success with a major automotive manufacturer has reduced downtime by up to 70%.
Surge Protection for Primary and Secondary Power SuppliesSCHURTER now offers overvoltage protection components, thereby making it possible for users to obtain all components required for the electrical protection of their electronic appliances from one source.
Intersil - Octal switch provides ESD protection for switching and routing of diverse signal types in high-end cell phonesSaid to offer 4 times the ESD protection of competitive solutions, Intersil's ISL54230 octal switch provides a simple, space-efficient way to interconnect baseband chip, application processor, internal SIM cards and other support chips in full-featured SmartPhones. The ISL54230's small size and flexibility allows designers to optimize the routing of the many different types of signals found in high-feature-set cell phone products.
Semtech Handset Protection Platform Offers Small Size Low Capacitance and Power Saving AdvantagesSemtech has announced two additions to its MICROClamp family of protection devices, the uClamp 0511T and the uClamp 1211T – both of which feature the ultra low profile, low leakage and low capacitance needed for mobile phone and portable designs. Both parts are designed to replace multilayer varistors (MLVs) in portable applications, offering the same small size with improved clamping voltage and protection. The bidirectional uClampxx11T parts are packaged in Semtech's two-pin SLP1006P2T package measuring only 1.0 x 0.6 x 0.4 mm – a size that makes the parts appropriate for even the thinnest of designs.
Omniflex - Device provides isolation and surge protectionOmniflex has released a range of Signal Isolators, the Omniterm LZ series with integrated surge protection designed specifically for the Signal Conditioning Market where isolation and surge protection are required together.
Semtech Targets PoE Market at Major Telecom OEMs with new circuit protection deviceSemtech has announced the RClamp0524S, the first circuit protection device with an advanced split-pad transient voltage suppression architecture designed to protect Power Over Ethernet (POE) interfaces from electrical surges and transients.
Toshiba - Ultra-miniature bidirectional ESD protection diodeToshiba Electronics Europe has launched an ultra-miniature bidirectional ESD protection diode that provides protection against both negative and positive voltage spikes. While protection of general data lines requires only a negative clamping voltage, it is necessary to offer both positive and negative clamping when protecting audio lines.
STMicroelectronics - Integrated Protection ICs Enable Smaller PoE EquipmentSTMicroelectronics has simplified the design of equipment for powering devices connected to an Ethernet network by introducing an integrated surge-protection IC that meets Power-over-Ethernet specifications and protects against high-voltage surges, including electrostatic discharge (ESD). ST's PEP01-5841 protection IC is used in Power Sourcing Equipment (PSE), such as PoE-enabled Ethernet switches or hubs, which drive the specified 48V supply onto the Ethernet cable.
ON Semiconductor Expands ESD Protection Technology into Industry’s Smallest Package for Use in Portable Electronics ApplicationsON Semiconductor has introduced two ESD protection devices housed in its new, ultra-small 0201 Dual Silicon No-Lead (DSN-2) package. The DSN style package, which measures a mere 0.6 mm x 0.3 mm x 0.3 mm, enables 100 percent utilization of the package area for active silicon, offering a significant performance-per-board-area advantage compared with products in plastic molded packages.
Overvoltage Protectors with USB Charger Detection and ESD ProtectionMaxim has introduced the MAX14529E/MAX14530E overvoltage protectors (OVPs) with USB charger detection. These devices employ an integrated MOSFET to protect low-voltage systems against voltage faults up to 28V, thus eliminating the need for an external nFET.
Common Mode Choke EMI Filter with Integrated ESD Protection for High-Speed Data LinesON Semiconductor has introduced the industry's first integrated common mode choke and electrostatic discharge protection IC for high-speed data line applications. The new NUC2401MN combines high bandwidth differential filtering, solid common mode stop band attenuation and world class ESD protection. Analog Devices Unveils Single-package Solution for Medical-grade Data and Power IsolationAnalog Devices has expanded its broad portfolio of digital isolation products with a family of four-channel devices that meet stringent medical-grade specifications for data and power isolation in patient monitoring and other medical equipment. Each device integrates ADI's iCoupler digital isolation technology and proprietary isoPower dc-to-dc converter, providing both isolated power and isolated signal channels within a single package.
Motor Protection PTC Thermistors from ATC SemitecATC Semitec is now stocking a range of motor protection PTCs to compliment its existing range of re-settable thermal cut-outs. The new SPMP PTCs are available with trip temperatures ranging from 60oC to 190oC and comply with the DIN 44081 industry standard.
Avago's Extended Temperature 2.5A Gate Drive Optocouplers for Industrial AppsAvago Technologies today announced an extended temperature 2.5 Amp gate drive optocouplers for use in a wide range of industrial applications. Avago's ACPL-312U, which is a member of the R2CouplerTM family, incorporates an alloy lead frame to offer superior heat dissipation, which allows it to operate over an extended industrial temperature range from -40 to 125 degrees C. These new extended temperature optocouplers from Avago target designers of isolated IGBT/power MOSFET gate drives, industrial inverters, AC and brushless DC motor drives, and uninterruptable power supplies. Avago is a leading supplier of analog interface components for communications, industrial and consumer applications.
Silicon Labs Introduces More Than 70 Low Power High Performance Digital IsolatorsSilicon Laboratories has introduced the Si84xx ISOpro digital isolator family, said to be the industry's first to support as many as six unidirectional isolation channels capable of data rates up to 150 Mbps. Offering space-efficient packaging options, a choice of isolation ratings up to 2.5 kVRMS and the industry's most highly integrated I2C isolators, the ISOpro family delivers unsurpassed system design flexibility for use in applications such as power supplies, motor control systems, hybrid electric vehicles, industrial networking, medical and consumer products.
Devices protect against lightning strikes and spikesThe latest range of Metal Oxide Varistor (MOV) planar arrays from Syfer Technology are designed specifically to deliver protection against lightning strikes and other transient events in military, aerospace and other safety critical applications. Incorporated into the connectors on the external wall of the subsystem, the devices are key to protecting the increasing volume of sensitive electronic circuitry found in today's complex systems.
Vishay’s EMI/ESD Filter Arrays Offer Input Loss <1 db in Ultra-Compact Leadless PackagesVishay has announced the release of two new four-and eight-channel LC EMI/ESD filter arrays with input loss of < 1 dB in ultra-compact LLP1713 and LLP3313 leadless packages. With a low profile of 0.6 mm, the new VEMI filter arrays are designed to save board space and provide EMI filtration and ESD protection for embedded cameras and LCDs in portable gaming systems, PDAs, mobile phones, and any other system designed to receive RF signals in the 800-MHz to 2400-MHz frequency range.
USB 2.0 OVP Device With Both Integrated Current Protection and High-Speed ESD ProtectionON Semiconductor has introduced the NCP362 which is said to be the industry's first overvoltage protection (OVP) device with both integrated current protection and high speed electrostatic discharge (ESD) protection for USB 2.0 applications in portable, telecom, consumer and computing systems.
KOA Introduces Universal Modular Fuse LinksThe CCF-UM is a Universal Modular Fuse (UMF) with fusing characteristics according to IEC standard 60127-4, with current ratings from 400 mA up to 6.3 A. Its voltage rating is equal for AC and DC at 125 V. The circuit protector provides a high breaking capacity of up to 63 A at 125 V, and provides superior anti surge characteristics. KOA's long experience and original technology guarantees stable fusing characteristics.
ZnO Based Transient Voltage Suppressor Series from AVXAVX has developed a Zinc Oxide based varistor series that exhibits a low leakage current of 2µA maximum. Designated the UltraGuard Series, the multilayer ceramic varistors feature non-linear, bi-directional voltage-current characteristics similar to back-to-back zener diodes and an EMC (electromagnetic compatibility) capacitor in parallel.
ZnO Based Transient Voltage Suppressor Series from AVXAVX has developed a Zinc Oxide based varistor series that exhibits a low leakage current of 2μA maximum. Designated the UltraGuard Series, the multilayer ceramic varistors feature non-linear, bi-directional voltagecurrent characteristics similar to back-to-back zener diodes and an EMC capacitor in parallel.
Fast-Acting High-Current Chip Fuse Helps Board SpaceTyco Electronics has introduced a line of fast-acting, high-current chip fuses. Helping provide overcurrent protection on power supplies, servers, communications equipment, voltage regulator modules, and other space-constrained applications, the surface mount chip fuse offers strong arc suppression characteristics and some of the highest current ratings available in the industry-standard 1206 form factor.
NXP launches TVS diodes and claims highest surge capability in FlatPower packageNXP Semiconductors has announced a range of transient voltage suppressor (TVS) diodes housed in its new FlatPower package, SOD123W. Offering a 400 W peak pulse power rating (10/1000µs), the new diodes dissipate app. 67 W/mm2 surge per PCB area. This is more than twice the surge capability on offer in the market by TVS products in similar packages. Such high surge capabilities over smaller areas will enable engineers to save space on the PCB while delivering optimum power performance. It will also allow engineers to integrate more functions on the PCB.
Adjustable Overvoltage Protectors from MaximMaxim has introduced the MAX14527/MAX14528 overvoltage protectors (OVPs) designed to protect low-voltage systems against voltage faults up to 28V. These devices employ an internal low, 100milliohm (typ) Ron MOSFET to prevent damage to circuitry from overvoltage conditions. This integration eliminates the need for an external n-channel MOSFET, thus saving board space and reducing cost.
High-performance EMC/EMI filters handle up to 600A from SchaffnerSchaffner has extended its popular FN 3280 filter family for use in higher power applications. New models are now available rated at 300A, 400A and 600A. Complementing the existing series, the new filter models offer users superior EMC performance, compact dimensions and low leakage current.
Tiny Dual Hot Swap Controller for Optical Networks from Linear TechnologyLinear Technology has introduced the LTC4224, a compact, low voltage Hot Swap controller for protecting boards and backplanes that use two 1V to 6V voltage supplies. Systems, including fiber optic networks, will benefit from the simplified control with independent turn-on and adjustable ramp of the two supplies. In recent years, multisource agreements like XENPAK have defined fiber optic transceiver modules that provide transmission rates up to 10Gbits/sec over distances as long as 80km. Since then, more versatile definitions like X2 or Xpak have emphasized smaller form factors for space-constrained applications.
ON Semiconductor’s New Highly-Integrated Overvoltage Protection ICON Semiconductor has introduced the NUS6189, a device that integrates the performance and functions of an overvoltage protection (OVP) circuit, a 30 volt (V) P-channel power MOSFET, a low VCE(sat) transistor and a low Rds(on) power MOSFET into a space-saving 3.0 mm x 4.0 mm x 0.9 mm package. The NUS6189 is designed to protect sensitive electronic circuitry from overvoltage transients and power supply faults. It is optimized for applications that utilize an external AC-DC adapter or car accessory charger such as mobile phones, PMPs and mobile internet devices.
Intertronics launches improved conformal coatingFirst level defence of electronic assemblies is often a post-assembly dielectric spray used to protect against moisture, bio-hazards and low level mechanical problems. Now Intertronics' sales partner DYMAX Corp have trialled their Dual-Cure 9481 Conformal Coating, showing significant improvements over previously available products.
Vishay's USB-OTG Bus Port Protection Array.Vishay Intertechnology has released a compact ESD-protection array featuring a low capacitance and leakage current to protect USB-OTG ports against transient voltage signals. The new device provides three lines of USB ESD protection at a 5.5-V working range, and one line of VBUS protection at a 12-V working range. New SOT Package for Semitec CRDsAs a response to a need for a simpler SMD package and higher current ratings, Semitec have now introduced the new S-series CRD range. The new SOT23 package offers constant current values from 0.1ma upto 18mA.
Surge protection devices meet statutory requirements for lightning strike protectionFinder has announced the introduction of the 7P Series of Surge Protection Devices developed specifically to comply with BS-EN62305: Protection Against Lightning, providing protection against lightning strikes, or surges caused by short circuit and contact switching in electrical systems.
Tyco Electronics Announces 24V Bus - Truck Circuit ProtectionTyco Electronics introduced today a new line of PolySwitch circuit protection devices for the automotive market. The AHEF family of devices helps provide resettable overcurrent protection for bus and truck wire harnesses utilizing 24V electrical systems. ON Semiconductor Introduces Family of Surge Protection DevicesON Semiconductor has announced the release of a new family of low capacitance Thyristor Surge Protection Devices (TSPD) designed to protect the next generation of high speed telecom equipment. The new devices provide a superior balance of small size combined with high surge capabilities while maintaining low capacitance and low leakage, an ideal combination for leading edge telecom products.
Tyco's Polyswitch circuit protection deviceTyco Electronics has announced the introduction of a new line of PolySwitch circuit protection devices. Designed for use in a wide variety of general electronic products -- ranging from industrial controls to battery packs -- the new PolySwitch RKEF devices are functionally equivalent to the company's existing RXEF overcurrent protection devices, but are available in a significantly smaller form factor.
ON Semiconductor Introduces Low Profile ESD Protection ArraysON Semiconductor has announced two new members of its low capacitance Electrostatic Discharge (ESD) protection product line - the NUP4016 and the ESD11L5.0D. These new products utilize ON Semiconductor's patented, leading-edge, integrated ESD protection platform, which enhances clamping performance while maintaining ultra-low capacitance and small die size. Offered in ultra-small packages that provide a 20 percent lower profile than previous package versions, they are ideal protection devices for portable applications such as mobile phones, MP3 players, flat panel displays and other high-speed communication applications requiring superior protection in an ultra-slim package.
New 4-Line Bus Port Protection Array from VishayVishay Intertechnology has released a compact new 4-line ESD-protection array designed to provide a low capacitance with a high surge current for the protection of dual high-speed USB ports, or up to four other high-frequency signal lines, against transient voltage signals. 3.3V TVS from Solid State SuppliesProviding telecom/datacom system designers with the industry's smallest 3.3V working voltage protection device rated for 100A GR-1089 intra-building lightning surge, the new TClamp 3302N, a 3.3V, low-capacitance TVS device from Solid State Supplies delivers superior electrical performance, yet uses almost five times less board space than competitive devices
SCHURTER is Europe’s only manufacturer of an ESA/ESCC qualified fuse for use in spaceSCHURTER is Switzerland's first manufacturer to be awarded the official ESA/ESCC (European Space Agency) qualifi-cation for its MGA-S SMD fuse. It complies with ESA/ESCC Generic Specification No. 4008 for use in space.
ON Semiconductor Expands ESD Protection PortfolioON Semiconductor has announced the expansion of its high performance off-chip ESD protection portfolio with the introduction of two best-in-class devices - the ESD7L5.0D and the NUP4212. These new products have been designed using ON Semiconductor's propriety integrated ESD protection platform, which enhances clamping performance while maintaining low capacitance and small die size.
Multilayer Varistors from AVXAVX Corporation has expanded its AntennaGuard Series of low capacitance multilayer varistors (MLVs) to include a sub 1pf version. Designed to provide a one chip solution for protecting high speed digital interfaces, RF antenna and RF amplifier circuits against ESD events, the application specific, bi-directional transient voltage suppressor provides minimal signal distortion and low insertion loss. The low profile 0402 MLV features a fast response time to ESD and can withstand successive 1k strikes at 8kV (IEC 61000–4-2).
Double-Diode Bus Port-Protection Array from VishayVishay Intertechnology has released a compact new double-diode ESD-protection array designed to protect dual high-speed USB ports or up to two other high-frequency signal lines against transient voltage signals.
New Chip Varistor Series for automotive ApplicationsThe requirements on product reliability in the automotive sector are among the toughest in industry. Targeting these demands KOA introduced the chip Varistor series NV73DL for automotive applications. The complete AEC-Q200 test data is available now for the new Varistor series.
Murata's PRF thermistor series protects power FETs in multiple locations in POL converter applicationsThe latest addition to Murata's PRF family of chip ceramic thermistors (POSISTORs) is the PRF18xx5RB series, designed for overheat detection of power FETs in point of load (POL) DC-DC converters and other power supply applications. Each part has two temperature sensing points and features characteristic curves that rise very sharply. The series has a resistance of 470 at 25C, rising to 4.7K between 65 and 145C, rising further to 47k between 80 and 150C, depending on the part number. The PRF series is available in tiny 0603 packaging, and is also suitable for detecting overheat conditions in battery packs, motors, power devices and other systems.
Four-Channel, Single-Package Solution For Data And Power Isolation from Analog DevicesAnalog Devices is expanding its family of digital isolation products with a series of four-channel devices that isolate both data and power. Each device integrates ADI's iCoupler digital isolation technology and ADI's proprietary isoPower dc-to-dc converter, providing both isolated power and isolated signal channels within a single package.
Digital Isolators Qualified For Automotive Systems are a first says Analog DevicesTuning its proprietary iCoupler digital isolation technology to meet the reliability and quality needs of emerging electric-hybrid vehicles, Analog Devices, Inc. (ADI) is introducing a family of digital isolators designed to operate in today's electrically challenging automotive environment. Unlike the relatively low-voltage signals powering most in-car entertainment, safety, and power train systems, hybrid-vehicle batteries can operate at voltages in excess of 600 V, which creates a need to galvanically isolate system-critical electronics. Analog Devices' new ADuM120xW, ADuM130xW and ADuM140xW digital isolators were developed for electric-hybrid vehicle systems, such as motor drives and battery management systems. These new iCoupler products are the first digital isolators to carry an AEC-Q100 qualified –40°C to +125°C automotive temperature rating.
Lightning Protection for Load Cell InstallationsCelsum Technologies Ltd have recently added to their range of strain gauge based sensors and instrumentation the IPU40 Lightning Protection System. The IPU40 is especially useful for applications with external load cells, such as vehicle weighing, web tensioning, crane loading, canitlever overload protection, lift assemblies, generic load movers, and many others.
Medium Power multilayer chip varistorsAVX Corporation has made available medium power multilayer chip varistors for transient voltage suppression and ESD protection in automotive electronics, designated the Automotive Series – VC13, 14, 15 and 20. The devices operate over -55 to 125 degrees Celsius, feature high energy ratings of up to 25 Joules in a 2220 case size, and are specified with 'Load Dump' and 'Jump Start' test requirements.
Precision Zener Diodes protect Automotive Infotainment PeripheralsTyco Electronics has announced the addition of two new devices to its line of PolyZen polymer enhanced, precision Zener diode micro-assemblies. The new devices feature a higher hold current (2.3A) and are designed to help protect circuits in global positioning systems (GPS), smart phones, game consoles, portable media players (PMPs) and other video-based peripherals that can be charged in the car.
Medium power multilayer chip varistorsMedium power multilayer chip varistors from AVX Corporation are available for transient voltage suppression and ESD protection in telecommunications, designated the Telecom Series – VC14. The devices operate over -55 to 125 degrees Celsius, and meet interference requirements of telecoms equipment with a 2000 V rated test pulse of 10 x 700 µs duration as specified by CCITT or IEC 61000-4-5. For example a 60 Vrms varistor can reduce the interference voltage at the equipment connected from 2 kV to less than 200 V.
Low leakage transient voltage suppressors from AVXUltraGuard Series ZnO based varistors from AVX Corporation, a leading manufacturer of advanced passive components, exhibit very low leakage current of2 µA maximum making them ideal transient protection applications where power consumption is a primary concern. Multilayer ceramic transient voltage suppressors target ESD protection for CMOS, Bipolar and SiGe devicesStaticGuard multilayer ceramic transient voltage suppressors from AVX Corporation, a leading manufacturer of advanced passive components, are designed to address ESD protection for CMOS, Bi-polar and SiGe based devices. The voltage suppressors meet 15 kV ESD pulse (air discharge) per IEC 1000-4-2, Level 4, generating less than 20 millijoules of energy. It is particularly important to protect ICs against ESD as the typical failure voltage for CMOS and Bi-polar is under 200 V.
STMicroelectronics Combines ESD Protection and EMI Filtering in Small PackagesSTMicroelectronics has announced new devices that combine EMI filtering and ESD protection in a single ultra-compact package, enabling system designers to implement both functions within a footprint of 0.6mm2. Until now, the smallest available components have required this much board space for ESD protection alone.
Device Helps Provide Resettable Circuit Protection For Automotive Wire HarnessesTyco Electronics has announced the introduction of a new line of Raychem Circuit Protection PolySwitch devices for the automotive market. Useful in helping to provide resettable overcurrent protection for passenger vehicle and heavy truck wire harnesses, the PolySwitch bladed contact device features a 2.8 mm form factor to facilitate easy, one-to-one replacement of mini-sized fuses and Type II bimetal circuit protection devices in 12V vehicle systems. Varistors from AVX reduce component count for ESD protection in CAN applicationsCAN Series varistors from AVX Corporation are specifically designed to provide ESD protection in controlled-area-network (CAN) applications, predominantly in automotive electronics. The zinc-oxide (ZnO) based, multilayer ceramic varistors feature non-linear, bi-directional voltage-current characteristics similar to back-to-back Zener diodes and an EMC (electromagnetic compatibility) capacitor in parallel. This "equivalent" capacitor ensures inherent EMI/RFI attenuation. Multilayer varistors from AVX protect antennas and RF amplifiers from transients and ESDAntennaGuard multilayer ceramic transient voltage suppressors from AVX Corporation, a leading manufacturer of advanced passive components, target RF-antenna and RF-amplifier protection. These devices are zinc-oxide (ZnO) based, multilayer ceramic chips in 0402 and 0603 sizes and feature non-linear, bi-directional voltage-current characteristics similar to back-to-back Zener diodes and an EMC (electromagnetic compatibility) capacitor in parallel.
Circuit breakers take flight with AercoAerco holds stock of a wide range of E-T-A circuit breakers designed specifically to provide electrical safety on all types of military and civil aircraft and meet the demands of the aerospace industry. E-T-A has long experience of supplying breakers that have high interrupt capacity and tolerance to adverse conditions combined with the small physical size and low weight essential for use in the confines of aircraft and aerospace vehicles.
On-Load Isolators from RittalRittal RiLine NH on-load isolators provide safe, reliable isolation protection from down-stream electrical equipment. Available either with or without fuse monitoring, the isolators range from 100 to 630A (60mm), sizes 000 to 3 and can be easily mounted directly onto Rittal's range of busbar systems.
Surge Suppression Devices Help Protect High Data Rate Telecom and Datacom EquipmentTyco Electronics has announced the addition of new devices to its Raychem brand SiBar thyristor series. These new bi-directional transient voltage surge suppressors include an expanded range of available voltages, and lower capacitance to help protect high-speed ADSL/VDSL modems, Ethernet and Power-over-Ethernet and other high data rate communications equipment from damage from overvoltage events.
Current monitor simplifies high voltage circuit protectionWith its extended common-mode sensing voltage range of 3V to 60V, the ZXCT1080 current monitor from Zetex Semiconductors provides a simple solution for high side current sensing in a wide range of high voltage circuit protection duties in automotive, industrial motor control and power supply applications.
ESD and Overcurrent Reference Layout for HDMI 1.3 Interfaces Based on Passive Protection DevicesTyco Electronics announced today the introduction of a reference layout for ESD and overcurrent protection for HDMI 1.3 interfaces. The reference layout utilizes Tyco Electronics' low-capacitance (0.25pF signal to ground) PESD protection devices, and space-effective component placement and routing to help protect against ESD events and optimize board space. The reference layout also includes optional overcurrent protection on the +5V rail, using the PolySwitch nanoSMD device.
Inductor/Transformer Features a Low Profile Surface Mount DesignThe DR359 Series Surface Mount Inductor/Transformer from Datatronics features a unique dual coil design in a compact, low-profile package that makes it ideal for a wide range of applications in mini and hand-held electronic devices designed for the consumer, industrial, instrumentation, telecom and other industries.
Low-Profile Surface Mount Inductors Save SpaceDesigners of small, compact or portable electronic equipment will find the new low-profile DR331-5 Surface Mount Inductor from Datatronic Distribution offers excellent EMI protection performance and reliability in a miniature package.
Chip Inductor Supports High Frequency Electronic CircuitryWith a sub-1mm square surface mount chip footprint, the DR354-0 Chip Inductors from Datatronic Distribution feature a miniature design that delivers superior performance and value in high frequency circuit designs for a wide range of electronic equipment.
Overvoltage Protection Regulator from Linear Technology protects high availability systemsLinear Technology has introduced the LT4356, an overvoltage protection regulator, with overcurrent protection and inrush current limiting for high availability systems. In applications where electronic systems must cope with high voltage surges of short duration, such as load dump in automobiles, the LT4356 provides solid front-end protection for valuable, safety critical downstream components. The wide input operating range of 4V to 80V enables continuous operation during cold crank conditions where the battery voltage can be as low as 4V. With its high input voltage rating, the LT4356 can handle transient voltages of 100V and higher, and provides reverse input protection to -30V without damage to itself or the load. The LT4356 lends itself well to automotive, industrial and avionics applications, as well as positive high voltage distributed power Hot Swap systems.
Tyco's Polyswitch features small form factorTyco Electronics has announced an addition to its PolySwitch resettable PPTC (polymeric positive temperature coefficient) devices surface-mount product family. Useful for the latest generation of high frequency data ports, I/O ports and storage devices, the picoSMD035F device offers circuit designers the smallest PPTC overcurrent protection device available for consumer and computer electronics.
IEC approved UMF fuse in 1206 package from ArrowNow available from Arrow, the Schurter USI 1206 is the industry's first IEC approved Universal Modular Fuse in a 1206 footprint. In addition to conformance to IEC 60127-4/2, the device bears international approvals by cURus, METI and CCC. The new fuse series has high melting I˛t values, which provides greater withstand against inrush or pulse currents. In lower overcurrent conditions its opening time compares to 1206 time-delay types according to UL; but it also responds very quickly to higher overcurrents in the event of a fault condition.
Battery Charger front-end IC increases system safety when charging a cell phoneTexas Instruments has introduced today a family of battery charger front-end integrated circuits, which dramatically increases protection when charging a cell phone or other portable electronic device. The 2 mm x 2 mm safety circuits protect a system from input over-voltage, over-current and battery over-voltage conditions, which may result from a power spike during charging, or a defective or incorrect wall adapter.
16V 250 mA LDO from MicrochipMicrochip has announced the MCP1703 Low Dropout Regulator (LDO)—a 250 mA LDO with low quiescent current of just 2μA and high input voltage of up to 16V. The new LDO features device- and circuit-protection capabilities including over-voltage protection and thermal shutdown. The MCP1703 also offers highly accurate output-voltage regulation, including +/- 2 percent over-temperature accuracy, helping to ensure smooth, reliable system operation.
Efficient, low-loss synchronous rectificationThe European distributor ECOMAL has introduced the first Schottky barrier rectifiers from Vishay Technology which use trench MOS technology. These devices appear in the equivalent circuit diagram as an MOS element and Schottky metal in parallel. New environmental guidelines including EUP (Energy – Using – Products 2005/32/EC), which are intended to save as much energy as possible and minimize the tolerable losses in the overall system, require highly efficient circuit designs.
4.5V-20V Load Switches are perfect for Circuit Protection and Power Management DesignsFairchild Semiconductor has announced the FPF250X series, a new family of its IntelliMAX devices with input voltages ranging from 4.5 up to 20V. These highly integrated load switches provide full protection against potentially damaging overcurrent conditions affecting low-power designs including industrial, telecom, medical, notebook and consumer applications. The FPF250X devices simplify design, reduce component count and minimize board space by integrating a 0.23 Ohm current-limited N-channel MOSFET with protection and control features such as thermal shutdown, controlled turn-on and undervoltage lockout, into a space-saving SOT-23 package. Available in either adjustable or fixed current-limiting options, the FPF250X series offer design flexibility while minimizing circuit tuning and troubleshooting, accelerating time to market in numerous power management and circuit protection applications.
L-C Protection Devices for Color LCDs in 3G HandsetsSemtech Corp has announced the EClamp239xP, the newest addition to Semtech's EMIClampTM protection portfolio. The EClamp239xP is a series of inductor-capacitor (L-C) protection devices featuring greater attenuation, steeper amplitude roll-off, and lower clamping voltage needed for high-performance color LCD interfaces in GSM and CDMA-based 3G handsets. The EClamp239xP series includes the four-line EClamp2394P, the six-line EClamp2396P and the eight-line EClamp2398P. The EClamp239xP's 5-pole L-C filter network has inductor values of 19nH and capacitor values of 12pF, enabling the devices to offer minimal attenuation in the passband and 30 dB minimum attenuation from 800 MHz to 2.7 GHz, ideal for 3G-based mobile phones. NIC adds SMT chip fuses to its product offeringNIC Components' comprehensive portfolio of passive components now includes safety agency certified surface mount chip fuses. The NFCC, NFHC and NFSC series provide an ultra-miniature solution to circuit protection applications in a wide range of electronics equipment.
ESD Protection for High-Speed ApplicationsSemtech has announced two new additions to its RailClamp family of low capacitance protection devices that provide system designers a new option for adding critical power protection to high-speed lines without the high clamping voltage and high capacitance limitations of competing solutions. RClamp1502B and RClamp2402B are designed with an ultra-low capacitance of 0.6pF to protect high-speed data lines without signal attenuation. The devices also have low clamping voltages to reduce stress on the protected IC that are very susceptible to ESD and CDE threats. The RClamp1502B protects two 15V lines and the RClamp2402B protects two 24V lines. Both devices protect two lines and are targeted for interfaces operating up to 1GHz, such as IEEE 1394 (FireWire), high-power USB, or ADSL input/output lines.
Ultra High Speed ESD Protection DiodesToshiba Electronics Europe (TEE) has announced the first device in a new Ultra High Speed family of ESD protection diodes aimed at interface protection applications for high-speed data ports, for example, USB2.0 interfaces. With handheld and portable devices, including mobile phones and digital cameras, integrating ever more functionality into increasingly smaller form factors, providing electrostatic discharge protection becomes even more important.
Combined Thermal Fuse/Resistor Acts FastATC Semitec's SEFUSE D6X is said to offer a new concept in thermal fuse technology. By combining a thermal fuse element and resistor on a single substrate, NEC has created a fast-acting ultimate protection device for high power DC applications upto 12A/32VDC.
Device Helps Protect Electric Motors and Transformers from Overcurrent and OvertemperatureRaychem Circuit Protection, a business unit of Tyco Electronics, has announced the introduction of its PolySwitch LVR series of resettable circuit protection devices. PolySwitch LVR devices help protect electric motors and transformers used in commercial and home appliances from failures caused by mechanical overloads, overheating, stall, lost neutral and other potentially damaging conditions.
5V Protection Device with Flow Through Design For Easy Board Layout from SemtechSemtech has announced the uClamp 0524P, the first 5V electrostatic discharge protection device with a flow through design. The four-line device is ideal for portable systems and replaces four separate discrete components, saving both cost and board space.
Avago's Optocouplers Target Industrial ApplicationsAvago Technologies has announced a new family of multi-channel phototransistor optocouplers to complement its existing single-channel product line. The company is a leading supplier of innovative semiconductor solutions for advanced communications, industrial and commercial applications.
Avago Expands Dual-Supply Voltage Optocoupler FamilyAvago Technologies has announced the latest addition to its line of high-speed digital CMOS optocouplers. At 25 Megabaud (MBd), the new ACPL-772L is the industry's fastest, dual-supply voltage (3.3 V and 5 V) optocoupler in a DIP-8 package. With its unprecedented speed and the ability to support up to 5 kV in isolation voltage protection, the ACPL-772L is ideal for not only high-speed data-line transmission applications, but also those operating in higher voltages, such as test and measurement products. Avago is a leading supplier of innovative semiconductor solutions for advanced communications, industrial and commercial applications.
Focus EDL introduces TVS devices from 400 to 15000WFocus EDL's appointment by leading discretes manufacturer EIC gives its customers access to what is recognized as the industry's widest range of transient voltage suppressors (TVS). With the trend towards lower voltages and higher integration, particularly in MOS devices and low power ICs, TVS devices are increasingly necessary for protection against over-voltage situations. They are used in a wide variety of applications such as power supplies, lighting ballast, personal computers, and telecom infrastructure.
UMT 250 fuse-link from SchurterThe latest addition to Schurter's range of RoHS compliant products is the UMT 250 fuse-link. The UMT 250 offers the highest protection currently available in primary protection SM fuses, touting a breaking capacity rating of 200 Amps at 250 VAC or 100 Amps at 125 VDC over a current range of 315 mA to 4 A.
5V Protection Devices for HDMI 1.3Semtech Corp has announced the RClamp0524P and RClamp0522P, two new 5V protection devices that are the first solid-state devices to reach 0.3pF in capacitance to meet the needs of High Definition Multimedia Interface (HDMI) 1.3 and other high-speed data lines. HDMI has been a dramatic success with more than 60 million HDMI-equipped devices shipped in 2006. In June 2006, the new HDMI 1.3 standard was introduced for improved color depth and audio output. HDMI 1.3 doubles the data rate of HDMI signals to 3.4 Gbps per differential pair.
Zener Diodes range from 0.25W to 5WFollowing its appointment by EIC Semi Ltd, the leading discrete components manufacturer, Focus EDL has made available a very wide range of Zener Diodes covering Zener voltages up to 200V and power up to 5W. Zener diodes are used in power conversion and protection solutions for industrial, automotive, and consumer applications. Ultra-Large-Bandwidth ESD Protection for HDMI Connections from STSTMicroelectronics has enlarged its portfolio of ultra-low-capacitance protection ICs for the high-definition video market. The new device allows a High Definition Multimedia Interface (HDMI), to operate at full HDMI speed of 1.65 Gbit/s and even up to 3.2 Gbit/s, with full 15kV contact and air Electrostatic Discharge (ESD) protection. Offering the best bandwidth available on the market (greater than 5GHz), the new HDMIULC6-4SC6 is a monolithic, application-specific device that provides complete rail-to-rail protection of four data lines without compromising signal integrity.
Low-Voltage Single-Line Protection Devices Protect 3.3, 5 and 12V SystemsSemtech Corp has announced three new, single-line versions of its uClamp protection products designed for portable devices with low voltage levels, starting at 3.3V. The uClamp3301P is designed to protect 3.3V lines, the uClamp0501P is designed to protect 5V lines, and the uClamp1201P is designed to protect 12V lines.
Self-Hold Thermal Cut-OutsPEPI's JS series thermal cut-outs combine the benefits of both automatic and manual reset cut-outs, without the disadvantages of either. By incorporating an internal resistor, the self-holding PEPI JS is the same size as the auto-resetting PEPI J, but with a manual-reset function.
Raychems's latest Zener diode micro-assembly protects DC power ports and downstream electronicsRaychem Circuit Protection, a business unit of Tyco Electronics, has announced the introduction of its PolyZen polymer enhanced, precision Zener diode micro-assembly. Designed to meet the growing need for overcurrent and overvoltage protection on portable equipment that utilizes barrel jacks for DC power input, the PolyZen device helps protect sensitive electronics from damage caused by inductive voltage spikes, voltage transients, incorrect power supplies and reverse bias.
New Devices offer 15kV ESD and Superior EMI for Portable ApplicationsFairchild has introduced key enhancements to its µSerDes technology. Using the same footprint and base architecture as its popular predecessor, the FIN24AC, the new FIN224AC offers enhanced ESD protection and reduced EMI.
Current regulating diode drives current hungry LEDsWith the increasing current demands of todays current hungry LEDs SeMitec has introduced an 18mA current regulating diode to its range. The E-183 delivers a constant 18mA over a voltage range of 6 to 25V.
Protection ICs Optimized to Protect Low-Noise-Block Voltage Regulators in Satellite Set-Top-Box ApplicationsSTMicroelectronics has introduced what it says is the world's first family of devices specifically optimized to protect the Low Noise Block (LNB) voltage regulator in satellite set-top-box applications against lightning and electrical overstress surges. The LNBTVSx-22x range provides 3kV, 4kV and 6kV optimized protection (8/20µs) devices that fully comply with the LNB supply voltage and IEC61000-4-5 protection standards.
Fuseholders provide cost-effective protectionNow in stock at Aerco is a new range of high quality fuseholders from Belling Lee designed to provide cost-effective circuit protection for commercial applications up to 30A at 600VAC.
Six-Line Protection Device Seems a Natural fit for Mobile Phone Keypads and other Portable DevicesSemtech has announced the µClamp™0506P, the industry's first ultra-small six-line 5V protection device for portable systems. The µClamp0506P is the latest addition to Semtech's MicroClamp product family, which now has the industry's widest selection of line capacities – from one to six lines. The device works in any portable device, but is a natural fit for 12-button mobile phone keypads, reducing the number of protection parts needed from three to two, thus freeing up board space and cutting costs.
Very small photo-IC output couplersToshiba Electronics Europe has expanded its TLP7xx family of photocouplers with three new devices that provide totem pole outputs. Supplied in SDIP packaging – making them 50% smaller than previous devices - the new photocouplers are suitable for a variety of applications including CAN bus interfaces, high speed data transfer, and intelligent power module signal isolation.
3.3V Optocoupler from Avago is Industry's FastestAvago Technologies has just introduced what is said to be the industry's fastest 3.3 V/5 V CMOS-compatible optocoupler, capable of transmitting data at 25 megabaud (MBd). This speed makes it ideal for high-speed, data-line transmission applications, such as those in industrial networking, including PROFIBUS and DeviceNet. Surge Arrestors Offer Ultra Low Capacitance for xDSL ApplicationsSTMicroelectronics has introduced a range of surge arrestors designed to protect ADSL/VDSL modems and similar high bit-rate communications equipment on the CPE (Customer Premises Equipment) side.
Device Offers Low Capacitance for HDMI Enabled ProductsSemtech has announced the RClamp0544M, a four-line protection device with the low capacitance and high protection levels necessary for high-definition multimedia interface (HDMI) and digital visual interface (DVI) enabled products.
Protection Devices Safeguard 3G/CDMA Phones from Increased EMI and ESD ThreatsSemtech has announced the EClamp™237xP family of devices designed to protect against the increased risk of electrostatic discharge (ESD) and increased levels of electromagnetic interference (EMI) and radio frequency interference (RFI) in 3G and CDMA phones that have high-resolution displays and video and digital camera features.
Two-Line Protection Device for Next-Generation DSL EquipmentSemtech Corp has announced the RClamp™7002M, a two-line secondary protection device designed for use in ADSL and other wide area networking (WAN) equipment.
Varistor provides enhanced protection and reduces component countThe latest surface-mountable AVX CANBus varistors replace three components typically used to protect against transient voltage spikes: two back-to-back Zener diodes and an EMC capacitor in parallel.
High Speed Data Interfaces ProtectedSemtech's RClamp0504N, a 5.0V protection device aimed at next-generation monitors, laptops, television set top boxes and networking equipment using high-speed I/O protocols, measures just 2.0 x 2.0 x 0.6 mm.
Semtech’s Newest 3.3V Protection Device Offers Simplified Design-inSemtech announces the uClamp™3304A, a 3.3V electrostatic discharge (ESD) protection device with the performance needed for next-generation portable designs, and packaged in an ultra small SC-89 package that is pin compatible with 5V protection devices for a simplified board design. |
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