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Vishay General Semiconductor - Diodes Division 1.5SMC51CAHE3/9AT — Circuit Protection

1.5SMC51CAHE3/9AT Vishay TVS, 1500W, 43.6V Standoff

MPN1.5SMC51CAHE3/9AT
Active

Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101 1.5SMC TransZorb® series, bidirectional TVS diode, 1500W peak pulse power, 43.6V reverse standoff, DO-214AB (SMC) surface-mount package.

Vishay General Semiconductor - Diodes Division 1.5SMC51CAHE3/9AT datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5SMC51CAHE3/9AT specifications
ParameterValue
TypeZener
SeriesAutomotive, AEC-Q101, 1.5SMC, TransZorb®
MountingSurface Mount
Voltage - breakdown48.5V
Voltage - clamping (Max) @ ipp70.1V
Voltage - reverse standoff43.6V
Current - peak pulse (10/1000μs)21.4A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-65°C~150°C(TJ)
PackageTape & Reel (TR)
ApplicationsAutomotive
CaseDO-214AB, SMC
Bidirectional channels1

Product details

Clamping threshold and surge rating

The 1.5SMC51CAHE3/9AT: For a 43.6 V nominal rail, this part clamps transients below 70.1 V, keeping downstream components within their voltage rating.

Automotive grade and package

AEC-Q101 qualification confirms the part meets automotive stress tests: temperature cycling, high-temperature reverse bias, and ESD robustness. The bidirectional channel protects both polarities from a single device, reducing component count on the PCB.

The part carries the TransZorb® trademark and is part of Vishay's automotive-grade 1.5SMC family.

Frequently asked questions

What compliance documentation does Vishay provide for 1.5SMC51CAHE3/9AT?

The part is AEC-Q101 qualified for automotive applications. RoHS and REACH compliance documentation is available from Vishay General Semiconductor - Diodes Division upon request through the supply chain.