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Vishay General Semiconductor - Diodes Division 1.5KE350A-E3/73 — Circuit Protection

1.5KE350A-E3/73 Vishay TVS, 1500W, 300V Standoff, DO-201

MPN1.5KE350A-E3/73
Active

Vishay General Semiconductor TransZorb® TVS diode, Type Zener, 1.5KE350A-/73, 1500W peak pulse power, 300V reverse standoff, 482V clamping, DO-201AA axial, Through Hole, Tape & Box.

$0.6989Ref. price · indicative, final on quote
Vishay General Semiconductor - Diodes Division 1.5KE350A-E3/73 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5KE350A-E3/73 specifications
ParameterValue
TypeZener
SeriesTransZorb®
MountingThrough Hole
Voltage - breakdown333V
Voltage - clamping (Max) @ ipp482V
Voltage - reverse standoff300V
Current - peak pulse (10/1000μs)3.1A
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 in a DO-201 axial package

The 1.5KE350A-E3/73: The 1.5KE350A-/73 is a 1500 W (1.5 kW) peak pulse power TVS diode from Vishay's TransZorb series, specified with a 300 V reverse standoff voltage and a 482 V clamping maximum at the 3.1 A peak pulse current (10/1000 µs waveform).

Clamping voltage and breakdown margin

The 3.1 A peak pulse current rating at the 10/1000 µs test waveform is the current the diode can shunt while holding the clamp voltage; for shorter transients (8/20 µs) the peak current capability is higher, but the 1500 W power envelope is the binding limit across pulse widths.

Frequently asked questions

What is the closest pin-compatible alternative to 1.5KE350A-/73?

The base product number 1.5KE350 covers the same DO-201 package family; variants differ by unidirectional/bidirectional polarity and packaging suffix (tape-and-reel vs bulk). Confirm the exact ordering code for your BOM position.

What compliance documentation does Vishay provide for 1.5KE350A-/73?

Vishay TransZorb TVS diodes in the 1.5KE series are typically RoHS-compliant and halogen-free. Specific certification documents (RoHS, REACH, UL) are available from Vishay's documentation portal for the base product number 1.5KE350.