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Vishay General Semiconductor - Diodes Division 1.5KE43A-E3/51 — Circuit Protection

1.5KE43A-E3/51 Vishay TVS, 1500W, 36.8V Standoff, DO-201AA

MPN1.5KE43A-E3/51
Last Buy

Vishay General Semiconductor - Diodes Division TransZorb® TVS, Type Zener, 1.5KE43A-/51, 1500W peak pulse, 36.8V reverse standoff, 59.3V clamping, DO-201AA axial, Bulk.

$0.7268Ref. price · indicative, final on quote
Vishay General Semiconductor - Diodes Division 1.5KE43A-E3/51 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5KE43A-E3/51 specifications
ParameterValue
TypeZener
SeriesTransZorb®
MountingThrough Hole
Voltage - breakdown40.9V
Voltage - clamping (Max) @ ipp59.3V
Voltage - reverse standoff36.8V
Current - peak pulse (10/1000μs)25.3A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C~175°C(TJ)
PackageBulk
ApplicationsGeneral Purpose
CaseDO-201AA, DO-27, Axial
Unidirectional channels1

Product details

Last-buy sourcing for the 1.5KE43A-E3/51

Vishay has placed the 1.5KE43A-/51 in Last Buy status — the manufacturer no longer accepts new orders for this part number, and remaining inventory is finite.

Clamping voltage and peak pulse current

The 36.8 V reverse standoff voltage means the diode draws negligible leakage below that rail; it only starts conducting in avalanche at the minimum breakdown of 40.9 V.

Through-hole package and temperature range

Housed in a DO-201AA (DO-27) axial-lead package, it is a through-hole part — the lead bend and hole diameter in the PCB must match the 1.5KE supplier device footprint.

Frequently asked questions

How can I order the 1.5KE43A-/51 or check stock?

This part is in Last Buy status from Vishay. We source it through independent distribution channels; submit an RFQ for current availability and pricing on your target quantity.

What package is the 1.5KE43A-/51 in?

It comes in a DO-201AA (DO-27) axial-lead through-hole package, supplied in bulk.