Evaluation platforms help pick SiC components in power conversion circuits. Xuning Zhang, Levi Gant, Littelfuse, Inc. The quest for greener energy production and consumption has put a premium on high-efficiency power circuitry. In that regard, many modern power supplies and converters operate at much higher voltages that allow use of lower currents to minimize I2R […]
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Tiny, dual-channel PPTC protects network and telecom equipment
Littelfuse, Inc. announced a new series of 250V Telecom PPTCs designed to help make telecom and network equipment more reliable. The TSM250-130 series protects against power cross and induced power surges as defined in ITU, Telcordia GR1089 and IEC 62368-1. Because it combines two resistance-matched PPTCs in a single surface-mount housing, it reduces the board […]
High-temperature thyristors handle up to 250 Vrms
Five new series of high-temperature Alternistor TRIAC switching thyristors are designed for use as semiconductor switches in appliances and equipment powered by line AC voltages up to 250 VRMS. Available in five compact, surface-mount and through-hole packages, these components expand the Littelfuse TRIAC product line by making high 150°C maximum junction temperature devices available in […]
TRIAC thyristors offer high-temp switching for IoT smart home applications
Littelfuse announced an additional five series of high-temperature Alternistor TRIAC switching thyristors. The thyristors are designed for use as semiconductor switches in appliances and equipment powered by line AC voltages up to 250VRMS. Available in five compact, surface-mount and through-hole packages, these components expand the Littelfuse TRIAC product line by making high 150°C maximum junction […]
Low-capacitance TVS Diode arrays protect 10GbE high-speed differential data lines from discharge and surge events
Littelfuse, Inc. introduced a series of low capacitance TVS Diode Arrays (SPA Diodes) optimized to protect high-speed differential data lines from electrostatic discharge (ESD), cable discharge events (CDE), electrical fast transients (EFT), and lightning-induced surges, keeping network communications reliable by safeguarding signal integrity. The SP3384NUTG Series can protect up to four channels against up to […]
TVS diodes provide 8-kW peak pulse power dissipation in a space-saving package
A new series of higher surge TVS Diode products come in an DO-214AB package. The 8.0SMDJ series is optimized to protect sensitive electronic equipment from transient voltage induced by lightning and other voltage events. Because it combines up to 8,000 W of peak pulse power dissipation in a compact DO-214AB SMC package, the 8.0SMDJ series […]
TVS diodes provides 8000 W peak pulse power dissipation in a PCB
Littelfuse, Inc. announced a new series of higher surge TVS Diode products in a DO-214AB package. The 8.0SMDJ series is optimized to protect sensitive electronic equipment from transient voltage induced by lightning and other voltage events. Because it combines up to 8000W of peak pulse power dissipation in a compact DO-214AB SMC package, the 8.0SMDJ […]
Advanced circuit protection for connected autonomous vehicles
New protocols for high connectivity need robust protection for reliability and safety. James Colby | Littelfuse, Inc. At the turn of the century, automobiles hosted many electronic systems that were basically independent. Since then, the growth of connectivity and the rise of artificial intelligence and machine learning have changed automotive electronics dramatically. Vehicles of all […]
Temperature indicators protect cables with bilateral USB Type-C connectors
Littelfuse, Inc. announced an expanded PolySwitch setP series of digital temperature indicators, designed to protect USB Type‑C and USB power delivery charging cables from dangerous overheating. The newest addition to the product family, the SETP0805-100-CC, is optimized for use in cables equipped with USB Type-C connectors at both ends. Typical applications for SETP0805-100-CC temperature indicators include […]
Why it’s tough to characterize SiC power MOSFETs
Switching transients and parasitics can combine to thwart the accurate measurement of important MOSFET operating parameters. Levi Gant, Xuning Zhang, Ph.D., Littelfuse, Inc. Silicon carbide (SiC) power MOSFETs get a lot of attention because they can switch fast while maintaining high blocking voltages. But their superior switching qualities also have potential drawbacks. Parasitic inductances caused […]
