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Vishay General Semiconductor - Diodes Division 1.5KE400A-E3/54 — Circuit Protection

1.5KE400A-E3/54 Vishay TVS Diode, 1.5kW, 548V Clamp

MPN1.5KE400A-E3/54
Active

Vishay General Semiconductor - Diodes Division TransZorb® TVS diode, 1.5KE400A-/54, 1500W peak pulse, 342V standoff, 548V clamp, DO-201AA axial, through hole.

$0.6164Ref. price · indicative, final on quote
Vishay General Semiconductor - Diodes Division 1.5KE400A-E3/54 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5KE400A-E3/54 specifications
ParameterValue
TypeZener
SeriesTransZorb®
MountingThrough Hole
Voltage - breakdown380V
Voltage - clamping (Max) @ ipp548V
Voltage - reverse standoff342V
Current - peak pulse (10/1000μs)2.7A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C~175°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
ApplicationsGeneral Purpose
CaseDO-201AA, DO-27, Axial
Unidirectional channels1

Product details

Package and deployment fit

The 1.5KE400A-E3/54: The operating temperature range from -55°C to 175°C covers both cold-start conditions in outdoor telecom cabinets and the under-hood ambient of automotive electronics — the junction can spike well above 125°C during a transient and still stay within the silicon's safe operating area.

Active lifecycle and sourcing posture

As a member of the TransZorb series, this diode is a catalog-maintained part with consistent parametric control across date codes.

Frequently asked questions

Where can I buy the 1.5KE400A-/54 and how is it quoted?

The 1.5KE400A-/54 is an active Vishay part sourced through authorized and independent distribution.

What is the 1.5KE400A-/54's breakdown and clamping voltage?

Minimum breakdown voltage is 380V, maximum clamping voltage at the 2.7A peak pulse current is 548V, and the reverse standoff voltage is 342V. This means the diode begins conducting around 380V and holds the line voltage below 548V during a 10/1000µs surge event.