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Vishay General Semiconductor - Diodes Division 1.5KE12-E3/73 — Circuit Protection

1.5KE12-E3/73 Vishay TransZorb TVS, 1500W, 17.3V Clamp

MPN1.5KE12-E3/73
Obsolete

Vishay General Semiconductor - Diodes Division TransZorb® TVS, Zener, 1.5KE12-/73, 1500W, 17.3V Clamp, Unidirectional, DO-201AA Axial, -55°C~175°C.

Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5KE12-E3/73 specifications
ParameterValue
TypeZener
SeriesTransZorb®
MountingThrough Hole
Voltage - breakdown10.8V
Voltage - clamping (Max) @ ipp17.3V
Voltage - reverse standoff9.72V
Current - peak pulse (10/1000μs)86.7A
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

1.5 kW unidirectional TransZorb for 12 V rail clamping

The 1.5KE12-E3/73: This tight clamping ratio keeps downstream components within their safe operating area during a surge event.

Through-hole assembly and thermal profile

The DO-201AA axial package is a through-hole form factor, hand-solderable and wave-solder compatible. No moisture sensitivity level (MSL) rating applies to this hermetic glass-passivated construction — it does not require a pre-bake before reflow, unlike plastic surface-mount TVS diodes. The 175°C maximum junction temperature gives ample margin for high-temperature wave solder profiles. The wide range suits applications from outdoor telecom cabinets to engine-bay electronics where ambient temperatures can exceed 100°C.

Frequently asked questions

What is the peak pulse current rating of 1.5KE12-/73?

The peak pulse current (Ipp) for a 10/1000 µs waveform is 86.7 A, at which point the clamping voltage reaches 17.3 V maximum.