1500 W peak pulse, 35.5 V clamping — what that means in practice
The 1.5SMCJ22CA_R1_00001 is a bidirectional Zener-based TVS (Transient Voltage Suppressor) in the DO-214AB (SMC) package. Reverse standoff of 22 V typ means the line runs at normal operating voltage with the TVS invisible — it conducts nothing until the surge pushes it past breakdown. Minimum breakdown of 24.4 V gives hysteresis room between standoff and clamping. Single bidirectional channel (1 channel) — adequate for point-of-load protection on a single rail; multi-rail designs need one per rail. The series is classified as General Purpose, not safety-rated, so it belongs in equipment protection rather than functional safety circuits.