Skip to main content
Log in
Vishay General Semiconductor - Diodes Division 1.5KE220A-E3/73 — Circuit Protection

Vishay 1.5KE220A-E3/73 TVS, 1500W, 185V Standoff, DO-201AA

MPN1.5KE220A-E3/73
Active

Vishay General Semiconductor - Diodes Division TransZorb® Zener TVS diode, 1.5KE220A-/73, 1500W peak pulse, 185V reverse standoff, unidirectional, DO-201AA axial, through-hole.

$0.3465Ref. price · indicative, final on quote
Vishay General Semiconductor - Diodes Division 1.5KE220A-E3/73 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5KE220A-E3/73 specifications
ParameterValue
TypeZener
SeriesTransZorb®
MountingThrough Hole
Voltage - breakdown209V
Voltage - clamping (Max) @ ipp328V
Voltage - reverse standoff185V
Current - peak pulse (10/1000μs)4.6A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C~175°C(TJ)
PackageTape & Box (TB)
ApplicationsGeneral Purpose
CaseDO-201AA, DO-27, Axial
Unidirectional channels1

Product details

1500 W peak pulse — what the clamp rating means

The 1.5KE220A-E3/73: The 328 V clamping ceiling and 209 V minimum breakdown voltage mean a 185 V DC bus (reverse standoff) sits below the avalanche threshold, so the part draws no leakage current under normal operation.

Unidirectional Zener — one polarity, one channel

This is a unidirectional Zener-type TVS with a single channel — it clamps overvoltage transients in one polarity only. For AC-coupled signal lines or bipolar supplies, a bidirectional part would be needed.

Frequently asked questions

How can I order the 1.5KE220A-/73 or check current availability?

The 1.5KE220A-/73 is an active Vishay part — we source it to order against your BOM line.

What is the peak pulse power and clamping voltage of the 1.5KE220A-/73?

The reverse standoff voltage is 185 V, and breakdown occurs at a minimum of 209 V.