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Vishay General Semiconductor - Diodes Division 1.5SMC51AHE3/57T — Circuit Protection

Vishay 1.5SMC51AHE3/57T TVS, 1500W, DO-214AB

MPN1.5SMC51AHE3/57T
Active

Vishay General Semiconductor, 1.5SMC series, Automotive AEC-Q101 TransZorb® TVS, Zener type, 1500W peak pulse, 43.6V standoff, DO-214AB SMC package, Tape & Reel.

Vishay General Semiconductor - Diodes Division 1.5SMC51AHE3/57T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5SMC51AHE3/57T 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
Unidirectional channels1

Product details

Automotive-grade transient suppression for 48V rails

The Vishay 1.5SMC51AHE3/57T is a 1500W peak-pulse-power Zener TVS diode from the 1.5SMC series, qualified to AEC-Q101 for automotive applications. It clamps transients at 70.1V maximum with a 43.6V reverse standoff, making it a fit for protecting 48V nominal power buses in engine control units, battery management systems, and DC-DC converter input stages.

DO-214AB SMC footprint and board integration

The JEDEC footprint matches the industry-standard SMCJ outline, simplifying layout reuse across the 1.5SMC family.

Frequently asked questions

What compliance documentation does Vishay provide for 1.5SMC51AHE3/57T?

As an AEC-Q101 qualified part, Vishay provides PPAP, RoHS compliance, and REACH SVHC declarations. The TransZorb® series is UL 497B recognized for secondary surge protection.