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Vishay General Semiconductor - Diodes Division 1.5KE9.1-E3/73 — Circuit Protection

1.5KE9.1-E3/73 Vishay TransZorb TVS, 1.5kW, 7.37V standoff

MPN1.5KE9.1-E3/73
Obsolete

Vishay General Semiconductor - Diodes Division TransZorb® TVS, Type Zener, 1.5KE9.1-/73, 1500W peak pulse, 7.37V standoff, DO-201AA axial lead, Tape & Box.

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

Specifications

1.5KE9.1-E3/73 specifications
ParameterValue
TypeZener
SeriesTransZorb®
MountingThrough Hole
Voltage - breakdown8.19V
Voltage - clamping (Max) @ ipp13.8V
Voltage - reverse standoff7.37V
Current - peak pulse (10/1000μs)109A
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

Clamping performance and protection envelope

The 1.5KE9.1-E3/73: The reverse standoff voltage is 7.37 V, meaning normal DC bus or signal rails up to that level see negligible leakage; breakdown begins at a minimum of 8.19 V.

Sourcing and compliance posture

No official successor or pin-compatible second-source is recorded from Vishay; the 1.5KE series parts are functionally similar but each has unique breakdown and clamping thresholds.

Frequently asked questions

What are the key electrical ratings for the 1.5KE9.1-/73?

Peak pulse power 1500 W (10/1000 µs), reverse standoff 7.37 V, breakdown min 8.19 V, clamping max 13.8 V at 109 A peak pulse current. Single unidirectional Zener TVS in DO-201AA axial package.