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Vishay General Semiconductor - Diodes Division 1.5KE170A-E3/51 — Circuit Protection

1.5KE170A-E3/51 Vishay TVS, 1500W, 145V Standoff, DO-201

MPN1.5KE170A-E3/51
Last Buy

Vishay General Semiconductor - Diodes Division, TransZorb® series, Zener TVS diode, 1.5KE170A-/51, 1500W peak pulse, 145V reverse standoff, 234V clamping, DO-201AA/DO-27 axial, Through Hole, Bulk.

$0.7268Ref. price · indicative, final on quote
Vishay General Semiconductor - Diodes Division 1.5KE170A-E3/51 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5KE170A-E3/51 specifications
ParameterValue
TypeZener
SeriesTransZorb®
MountingThrough Hole
Voltage - breakdown162V
Voltage - clamping (Max) @ ipp234V
Voltage - reverse standoff145V
Current - peak pulse (10/1000μs)6.4A
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 TVS for 145V rails

The 1.5KE170A-E3/51: The Vishay 1.5KE170A-/51 is a 1500W unidirectional TransZorb TVS diode in a DO-201AA axial-lead package. It clamps at 234V maximum and protects a 145V nominal rail from transients up to 6.4A peak pulse current (10/1000µs waveform).

Clamping voltage and breakdown margin

The minimum breakdown voltage is 162V, giving a 17V guard band above the 145V reverse standoff. The 234V clamp sets the maximum voltage the downstream circuitry sees during a surge — a key number for selecting downstream capacitors and MOSFETs with a Vds rating above 234V.

Vishay lists the 1.5KE170A-/51 as Last Buy.

Frequently asked questions

What package does 1.5KE170A-/51 come in?

Through-hole DO-201AA / DO-27 axial lead package, supplied in bulk.