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Vishay General Semiconductor - Diodes Division 1.5KE440C-E3/54 — Circuit Protection

1.5KE440C-E3/54 Vishay TVS, 1500W Bidirectional, DO-201AA

MPN1.5KE440C-E3/54
Obsolete

Vishay General Semiconductor - Diodes Division, TransZorb® series, bidirectional TVS diode, 1.5KE440C-/54, 1500W peak pulse, 356V standoff, DO-201AA axial, Tape & Reel.

Vishay General Semiconductor - Diodes Division 1.5KE440C-E3/54 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5KE440C-E3/54 specifications
ParameterValue
TypeZener
SeriesTransZorb®
MountingThrough Hole
Voltage - breakdown396V
Voltage - clamping (Max) @ ipp631V
Voltage - reverse standoff356V
Current - peak pulse (10/1000μs)2.4A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C~175°C(TJ)
PackageTape & Reel (TR)
ApplicationsGeneral Purpose
CaseDO-201AA, DO-27, Axial
Bidirectional channels1

Product details

Obsolete — sourcing reality for the 1.5KE440C-E3/54

The part is available through independent surplus and broker channels.

What the key ratings mean for your BOM

The clamping voltage at that peak current is 631 V max, meaning the diode holds the transient below 631 V across the load when conducting 2.4 A of surge current. Breakdown starts at 396 V min, so the device begins to clamp just above the 356 V working level. Bidirectional (single channel) — both polarities are clamped symmetrically.

TransZorb® series identity

This is part of Vishay's TransZorb® series, a well-known TVS diode family designed for general-purpose circuit protection.

Frequently asked questions

What is the 1.5KE440C-/54 used for?

It clamps transients above 396 V breakdown to a maximum of 631 V, protecting downstream circuitry from voltage spikes. The 356 V standoff voltage means it can be placed on a 356 V DC or peak AC rail without conducting in normal operation.