Industrial AC/DC power supplies must convert mains voltage to regulated DC under strict efficiency mandates, such as 80 PLUS, tight EMI/EMC limits, safety isolation requirements, and compact-enclosure thermal constraints. All of this must be done while surviving inrush, transient, and overload events over long duty cycles.
Vishay offers products for the full power conversion chain. Our high voltage SiC and Silicon power MOSFETs minimize switching losses, while isoCink+™ bridge rectifiers and SiC Schottky diodes provide efficient input rectification and PFC clamping. THB graded X1/X2/Y2 film capacitors and AC-line-rated ceramic disc capacitors provide EMI filtering and safety isolation, DC-Link capacitors deliver bulk energy storage, and high pulse-load MELF resistors handle snubbing and discharge. Vishay’s fusible wirewound safety resistors provide overcurrent protection, NTC thermistors limit inrush, shunt resistors enable precise current sensing, and TVS / ESD devices protect the control electronics from line transients. Vishay allows designers to source nearly all of an AC/DC PSU BOM from a single supplier.
Behind industrial power delivery is The DNA of tech.®
With over six decades of experience developing components designed to withstand high temperature and humidity conditions, Vishay's components are engineered to ensure exceptional reliability, featuring such qualifications as AEC-Q100, AEC-Q101, and AEC-Q200.
Components withstand temperatures up to 180 °C in harsh environments
Industry's lowest RDS(on) optimized for gate drives
AEC, MIL qualifications and superior long term performance
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