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Vishay General Semiconductor - Diodes Division 1.5KE22CAHE3/51 — Circuit Protection

Vishay 1.5KE22CAHE3/51 TVS Diode, 1500W, Bidirectional

MPN1.5KE22CAHE3/51
Obsolete

Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101 TransZorb® series, bidirectional TVS diode, 1.5KE22CAHE3/51, 1500W peak pulse, 18.8V reverse standoff, DO-201AA axial leaded.

$1.1300Ref. price · indicative, final on quote
Vishay General Semiconductor - Diodes Division 1.5KE22CAHE3/51 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5KE22CAHE3/51 specifications
ParameterValue
TypeZener
SeriesAutomotive, AEC-Q101, TransZorb®
MountingThrough Hole
Voltage - breakdown20.9V
Voltage - clamping (Max) @ ipp30.6V
Voltage - reverse standoff18.8V
Current - peak pulse (10/1000μs)49A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C~175°C(TJ)
PackageBulk
ApplicationsAutomotive
CaseDO-201AA, DO-27, Axial
Bidirectional channels1

Product details

What this 1500W bidirectional TVS does for an automotive rail

The 1.5KE22CAHE3/51 is a bidirectional Zener-type TVS diode from Vishay's TransZorb® series, qualified to AEC-Q101 for automotive use. It clamps transients on a nominal 18.8 V DC rail — the reverse standoff voltage — to a maximum of 30.6 V when hit with a 49 A peak pulse current (10/1000 µs waveform).

Housed in a DO-201AA (DO-27) axial-leaded package, it mounts through-hole — the leads are formed for insertion into a 1.0 mm diameter PCB hole. The body is 9.1 mm long, so plan for lead-bending clearance on the board edge. The junction temperature rating sets the derating curve for sustained high-power pulses.

The AEC-Q101 qualification and TransZorb® construction mean any replacement should match the 1500 W peak pulse, 18.8 V standoff, and bidirectional clamping profile.

Frequently asked questions

What are the key clamping specs for this TVS?

Bidirectional, 18.8 V reverse standoff, 20.9 V minimum breakdown, 30.6 V maximum clamping at 49 A peak pulse (10/1000 µs). Peak pulse power is 1500 W.