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Vishay General Semiconductor - Diodes Division 1.5KE150AHE3/51 — Circuit Protection

1.5KE150AHE3/51 Vishay TVS, 1.5kW, 128V Standoff, DO-201

MPN1.5KE150AHE3/51
Obsolete

Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101 TransZorb® series, TVS Zener diode, 1.5KE150AHE3/51, 1500W peak pulse, 128V reverse standoff, DO-201AA axial through-hole.

$0.5346Ref. price · indicative, final on quote
Vishay General Semiconductor - Diodes Division 1.5KE150AHE3/51 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5KE150AHE3/51 specifications
ParameterValue
TypeZener
SeriesAutomotive, AEC-Q101, TransZorb®
MountingThrough Hole
Voltage - breakdown143V
Voltage - clamping (Max) @ ipp207V
Voltage - reverse standoff128V
Current - peak pulse (10/1000μs)7.2A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C~175°C(TJ)
PackageBulk
ApplicationsAutomotive
CaseDO-201AA, DO-27, Axial
Unidirectional channels1

Product details

Clamp voltage and pulse power for the BOM

The 1.5KE150AHE3/51: The 143 V minimum breakdown voltage gives a guard band above the 128 V standoff — the diode stays high-impedance under normal bus voltage and only conducts when the transient exceeds the breakdown threshold. The DO-201AA axial package (DO-27 equivalent) is through-hole mounted, suited for point-of-entry protection on PCB edge connectors or bulkhead feed-throughs.

Sourcing an obsolete AEC-Q101 TVS

Vishay lists this part as obsolete. The AEC-Q101 qualification and TransZorb construction remain the same across the 1.5KE family, so a parametric cross-reference within that family is the practical path for a BOM replacement.

Frequently asked questions

Where can I buy the 1.5KE150AHE3/51 and get a price?

Current pricing and available quantities are confirmed at quote time — submit an RFQ for your BOM quantity and target delivery window.

What is the closest pin-compatible alternative to the 1.5KE150AHE3/51?

The 1.5KE series shares the same DO-201AA footprint and TransZorb construction — a parametric cross-reference within that family (same standoff voltage, same pulse power rating) is the practical replacement path. Confirm the breakdown and clamping voltages match your circuit's transient budget.