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Vishay General Semiconductor - Diodes Division 1.5KE30CA-E3/51 — Circuit Protection

1.5KE30CA-E3/51 Vishay TVS, 1.5kW Bidirectional

MPN1.5KE30CA-E3/51
Last Buy

Vishay General Semiconductor - Diodes Division TransZorb® TVS diode, 1.5KE30CA-/51, bidirectional, 1500W peak pulse, 25.6V standoff, 41.4V clamp, DO-201AA axial, Last Buy.

$1.6800Ref. price · indicative, final on quote
Vishay General Semiconductor - Diodes Division 1.5KE30CA-E3/51 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5KE30CA-E3/51 specifications
ParameterValue
TypeZener
SeriesTransZorb®
MountingThrough Hole
Voltage - breakdown28.5V
Voltage - clamping (Max) @ ipp41.4V
Voltage - reverse standoff25.6V
Current - peak pulse (10/1000μs)36.2A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C~175°C(TJ)
PackageBag
ApplicationsGeneral Purpose
CaseDO-201AA, DO-27, Axial
Bidirectional channels1

Product details

Last Buy — what it means for your BOM

The 1.5KE30CA-E3/51: Vishay has flagged the 1.5KE30CA-/51 as Last Buy — the manufacturer is taking final orders before the line closes. If this part is on your BOM, now is the time to secure lifetime-buy quantities or qualify a drop-in replacement before the window shuts.

Clamping performance — 1500 W in an axial body

The 25.6 V reverse standoff voltage means it sits transparently on a 24 V rail and only starts conducting when the line sees a surge above 28.5 V breakdown.

Through-hole package — rework-friendly axial lead

Housed in a DO-201AA / DO-27 axial leaded package, it's a through-hole part — easy to hand-solder, easy to replace on a rework bench. The axial body handles the thermal pulse of a 1500 W surge without cracking the epoxy, and the leads give a clear visual polarity mark for the cathode band (or lack thereof for bidirectional).

Frequently asked questions

Where can I buy the 1.5KE30CA-/51?

This part is in Last Buy status, so availability is narrowing. We source it through independent distribution channels — submit an RFQ for current pricing and confirmed stock at quote time.

What does the 25.6 V standoff voltage mean for my circuit?

The 25.6 V reverse standoff is the maximum DC voltage the TVS can withstand without conducting leakage current. It's a good fit for a 24 V nominal rail — the diode stays off during normal operation and only clamps when a transient pushes the line above 28.5 V breakdown.