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Diodes Incorporated 1.5KE33A-T — Circuit Protection

1.5KE33A-T Diodes Inc TVS Diode, 1500W, 28.2V Standoff

MPN1.5KE33A-T
Obsolete

Diodes Incorporated 1.5KE33A-T Zener TVS diode, 1500W peak pulse power, 28.2V reverse standoff, 45.7V clamping, DO-201 axial, Tape & Reel.

$0.6800Ref. price · indicative, final on quote
Diodes Incorporated 1.5KE33A-T datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5KE33A-T specifications
ParameterValue
TypeZener
MountingThrough Hole
Voltage - breakdown31.4V
Voltage - clamping (Max) @ ipp45.7V
Voltage - reverse standoff28.2V
Current - peak pulse (10/1000μs)33A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C~175°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
ApplicationsGeneral Purpose
CaseDO-201AA, DO-27, Axial
Unidirectional channels1

Product details

1500W peak pulse — what it means for circuit protection

The 1.5KE33A-T: The 28.2 V reverse standoff voltage means it stays transparent on a 24 V rail, only conducting when the line exceeds the 31.4 V minimum breakdown threshold.

Through-hole DO-201 — board integration

Housed in a DO-201AA (DO-27) axial leaded package, the 1.5KE33A-T mounts through-hole and suits point-to-point wiring or PCB layouts where a soldered axial body is preferred over surface-mount. The single unidirectional channel protects one signal or power rail per device.

Temperature range and general-purpose use

No power line protection — intended for signal and low-voltage DC rail transient suppression, not AC mains.

Frequently asked questions

What are the key clamping specs for 1.5KE33A-T?

Reverse standoff is 28.2 V, minimum breakdown is 31.4 V, maximum clamping is 45.7 V at 33 A peak pulse current (10/1000 µs waveform). Peak pulse power is 1500 W.