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Vishay General Semiconductor - Diodes Division 1.5KE9.1CAHE3_B/C — Circuit Protection

1.5KE9.1CAHE3_B/C Vishay TVS Diode, 1500W, AEC-Q101

MPN1.5KE9.1CAHE3_B/C
Active

Vishay General Semiconductor TransZorb® series, TVS Zener diode, Bidirectional, 1 channel, DO-201AA / DO-27 axial, Through Hole, 1500W peak pulse power, AEC-Q101 qualified.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5KE9.1CAHE3_B/C specifications
ParameterValue
TypeZener
SeriesTransZorb®
MountingThrough Hole
Voltage - breakdown8.65V
Voltage - clamping (Max) @ ipp13.4V
Voltage - reverse standoff7.7V
Current - peak pulse (10/1000μs)117A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C ~ 175°C (TJ)
GradeAutomotive
PackageTape & Reel (TR)
ApplicationsTelecom
QualificationAEC-Q101
CaseDO-201AA, DO-27, Axial
Bidirectional channels1

Product details

Automotive-grade TVS: AEC-Q101 qualification and 1500 W pulse capability

The 1.5KE9.1CAHE3_B/C: Capable is not qualified: this part has the PPAP-ready documentation an OEM auditor expects for a production ECU or battery-management clamp. With a 7.7 V reverse standoff voltage and a minimum breakdown of 8.65 V, it clamps transients at 13.4 V (max) while conducting 117 A peak pulse current. The 1.5 kW rating means it absorbs a 10/1000 µs surge without exceeding the junction temperature limit — sized for secondary protection on 12 V automotive buses where load-dump and inductive kickback are routine.

Single-channel bidirectional layout in DO-201AA axial

This is a single-channel bidirectional device — the breakdown characteristic is symmetrical, so no polarity concern during board assembly. The DO-201AA (DO-27) axial leaded package is through-hole mounted, suited for point-to-point wiring or PCB insertion where the leads are bent and soldered. The 1.5KE supplier device package footprint is standard across the series. It carries no power line protection rating, meaning it is intended for signal or low-side DC rail clamping, not mains AC. The Telecom application tag confirms the 10/1000 µs pulse shape matches Telcordia GR-1089 surge requirements — common in base-station power feeds and 48 V telecom rectifiers.

Active production — sourced per RFQ

Listed as Active on the manufacturer's lifecycle record.

Frequently asked questions

What AEC-Q grade does 1.5KE9.1CAHE3_B/C carry, and what does it mean?

It is AEC-Q101 qualified, the automotive discrete semiconductor stress-test qualification. This covers temperature cycling, ESD sensitivity, and reliability screening to the Q101 standard — required for any discrete diode used in a production automotive ECU or module.