What the 1500W peak pulse rating means on the bench
The 1.5SMC160: Reverse standoff voltage is 136V, meaning the diode stays off below that rail voltage. Breakdown occurs at a minimum of 144V, and the clamping voltage at peak pulse current is 229.95V — that's the voltage the protected circuit sees across the TVS during the event.
Housed in a DO-214AB (SMC) surface-mount package, also referred to as SMCJ. Single unidirectional channel — one TVS per package, cathode band marked.
