1500 W peak pulse in a DO-201 axial package
The 1.5KE15A A0G: The through-hole DO-201AA (DO-27, axial) package suits point-to-point wiring or PCB mounting where a robust leaded device is preferred over surface-mount for high-energy pulse handling.
Clamping performance and pulse current
At the 12.8 V reverse standoff, the diode draws negligible leakage under normal operating conditions. When a transient exceeds the 14.3 V breakdown threshold, it clamps to 21.2 V maximum while conducting 74 A peak pulse current — this limits the voltage seen by downstream components to a safe level. The 1500 W rating ensures the device absorbs the energy of a single 10/1000 µs surge without failing open or short. The unidirectional channel is polarity-sensitive; reverse-voltage protection requires a second device or a series diode if the line can swing negative.
Active production and sourcing posture
Taiwan Semiconductor Corporation lists the 1.5KE15A A0G as Active in production. For BOM planning, this part is available through authorized and independent distribution channels; current pricing and lead time are confirmed at RFQ against the required quantity.