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Vishay General Semiconductor - Diodes Division 1.5SMC56AHE3/9AT — Circuit Protection

1.5SMC56AHE3/9AT TVS Diode, 1.5kW, 77V Clamp, AEC-Q101

MPN1.5SMC56AHE3/9AT
Active

Vishay 1.5SMC, TransZorb® Automotive Zener TVS, 1.5SMC56AHE3/9AT, 1500W peak pulse, 77V clamp, DO-214AB (SMC), AEC-Q101.

Vishay General Semiconductor - Diodes Division 1.5SMC56AHE3/9AT datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5SMC56AHE3/9AT specifications
ParameterValue
TypeZener
SeriesAutomotive, AEC-Q101, 1.5SMC, TransZorb®
MountingSurface Mount
Voltage - breakdown53.2V
Voltage - clamping (Max) @ ipp77V
Voltage - reverse standoff47.8V
Current - peak pulse (10/1000μs)19.5A
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

AEC-Q101 TVS for automotive transients

The 1.5SMC56AHE3/9AT is a 1500 W (1.5 kW) peak-pulse-power Zener TVS diode from Vishay's 1.5SMC TransZorb series, qualified per AEC-Q101 for automotive applications. The DO-214AB (SMC) surface-mount package keeps the footprint consistent with standard SMCJ outlines; the single unidirectional channel covers one rail per device.

Automotive temperature grade and qualification

AEC-Q101 qualification means this part meets automotive-grade stress tests (preconditioning, HTRB, H3TRB, temperature cycling) and is PPAP-documentable — a requirement for Tier-1 submissions to OEMs.

Frequently asked questions

What AEC-Q grade does the 1.5SMC56AHE3/9AT carry?

The part is AEC-Q101 qualified, the discrete-component automotive stress standard. It is not a specific 'grade 0/1/2' like AEC-Q100 ICs, but the Q101 flow includes the same reliability screens (HTRB, H3TRB, preconditioning, temperature cycling) and supports PPAP documentation for OEM submission.