1500W peak pulse — what it means for your rail
The 1.5SMC16A: With a 13.6V reverse standoff voltage, it sits across the supply without conducting under normal operation; when a surge pushes the line above 15.2V (the breakdown minimum), the device avalanches and clamps the spike to 22.5V maximum, shunting up to 67.6A of peak pulse current (10/1000µs waveform). This is a unidirectional device — one channel, cathode banded — so it protects a single polarity rail. The 1500W rating is the peak pulse power dissipation for the standard 10/1000µs surge; for shorter pulses (like 8/20µs from an ESD event), the device can handle significantly higher peak current.
The operating junction temperature range spans -55°C to 150°C, covering industrial control cabinets, outdoor telecom enclosures, and under-hood automotive environments without derating. The DO-214AB (SMC) package is a standard surface-mount footprint for 1500W-class TVS diodes — the same pad layout used for the SMCJ series — so it drops into existing PCB layouts with no footprint change. No power line protection — the device is intended for signal and low-power DC rail protection, not AC mains. The tape-and-reel and cut-tape packaging options suit both high-volume reflow assembly and prototype builds.