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Vishay General Semiconductor - Diodes Division 1.5KE15-E3/73 — Circuit Protection

Vishay 1.5KE15-E3/73 TransZorb TVS, 1500W, 12.1V Standoff

MPN1.5KE15-E3/73
Obsolete

Vishay General Semiconductor TransZorb® TVS, 1.5KE15-/73, Zener type, 1500W peak pulse power, 12.1V reverse standoff, 22V clamping, 68.2A peak current, DO-201AA axial, through-hole.

Vishay General Semiconductor - Diodes Division 1.5KE15-E3/73 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5KE15-E3/73 specifications
ParameterValue
TypeZener
SeriesTransZorb®
MountingThrough Hole
Voltage - breakdown13.5V
Voltage - clamping (Max) @ ipp22V
Voltage - reverse standoff12.1V
Current - peak pulse (10/1000μs)68.2A
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

1500W peak pulse in a DO-201AA axial package

The 1.5KE15-E3/73: The 1.5KE15-/73 is a 1500W (1.5kW) TransZorb® TVS diode from Vishay General Semiconductor, rated for a 12.1V reverse standoff voltage and a 22V clamping point at 68.2A peak pulse current (10/1000µs waveform).

What the clamping and standoff ratings mean for the BOM

Breakdown occurs at a minimum of 13.5V, and clamping is specified at 22V maximum when the device conducts 68.2A peak pulse current — this 22V ceiling is the voltage the downstream circuitry must survive during a transient event. The absence of power line protection means this part is intended for secondary-side or signal-level clamping, not for direct AC mains primary-side surge suppression.

Obsolete — sourcing through independent channels

Vishay has marked the 1.5KE15-/73 as obsolete.

Frequently asked questions

What is the 1.5KE15-/73 used for?

It is a 1500W TransZorb TVS diode that clamps transient overvoltages on a 12V DC rail. With a 12.1V reverse standoff and 22V clamping, it protects downstream semiconductors from inductive spikes, ESD, and surge events in general-purpose circuit protection applications.

What package does the 1.5KE15-/73 come in?

It is supplied in a DO-201AA (DO-27) axial-lead through-hole package, shipped in Tape & Box (TB) format.