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Vishay General Semiconductor - Diodes Division 1.5KE43HE3/54 — Circuit Protection

1.5KE43HE3/54 Obsolete Zener TVS, 1.5kW, 61.9V Clamp

MPN1.5KE43HE3/54
Obsolete

Vishay General Semiconductor - Diodes Division, TransZorb® Automotive Series, Zener TVS Diode, 1.5KE43HE3/54, 1500W Peak Pulse, 61.9V Clamping, DO-201AA Axial, Through Hole.

Vishay General Semiconductor - Diodes Division 1.5KE43HE3/54 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5KE43HE3/54 specifications
ParameterValue
TypeZener
SeriesAutomotive, AEC-Q101, TransZorb®
MountingThrough Hole
Voltage - breakdown38.7V
Voltage - clamping (Max) @ ipp61.9V
Voltage - reverse standoff34.8V
Current - peak pulse (10/1000μs)24.2A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C~175°C(TJ)
PackageTape & Reel (TR)
ApplicationsAutomotive
CaseDO-201AA, DO-27, Axial
Unidirectional channels1

Product details

What this TVS diode does on the line

The 1.5KE43HE3/54: It clamps a transient at 61.9 V max when the surge current reaches 24.2 A, with a reverse standoff of 34.8 V — meaning it stays invisible on a 24 V or 28 V rail until a spike hits, then shunts the energy to ground.

Lifecycle reality — obsolete, not a design-in

Availability and date-code provenance are confirmed at quote time — the buyer should verify the date code matches the application's shelf-life and reliability expectations.

Sourcing this obsolete part

Because the 1.5KE43HE3/54 is discontinued, it is quoted to order from surplus and broker channels.