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Vishay General Semiconductor - Diodes Division 1.5KE400CA-E3/51 — Circuit Protection

Vishay 1.5KE400CA-E3/51 TransZorb TVS, 1500W, 342V Standoff

MPN1.5KE400CA-E3/51
Obsolete

Vishay General Semiconductor - Diodes Division TransZorb® TVS, Type Zener, 1.5KE400CA-/51, 1500W (1.5kW) peak pulse, 342V reverse standoff, 548V clamp, DO-201AA axial, bidirectional.

Vishay General Semiconductor - Diodes Division 1.5KE400CA-E3/51 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5KE400CA-E3/51 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)
PackageBulk
ApplicationsGeneral Purpose
CaseDO-201AA, DO-27, Axial
Bidirectional channels1

Product details

1500 W bidirectional TVS for 342 V rails

The 1.5KE400CA-E3/51: Housed in a DO-201AA (DO-27) axial-lead package, it is intended for through-hole mounting on general-purpose circuit protection applications where a single bidirectional device protects against surges on both polarities.

Clamp voltage and breakdown margin

The 342 V reverse standoff voltage (working voltage) means the TVS draws negligible leakage current on a nominal 342 V DC or 240 V AC rail. The minimum breakdown voltage of 380 V ensures the device does not conduct during normal operation, while the 548 V clamp limits the transient to a level that downstream semiconductors rated for 600 V can survive.

Obsolete — sourced through surplus channels

Vishay has marked the 1.5KE400CA-/51 as obsolete. Each lot is sourced and verified against the original Vishay specifications; quantities and pricing are confirmed at RFQ time.