1.5kW unidirectional TVS — what the clamping spec means
The 1.5SMCJ100AS_R1_00001 is a unidirectional Zener-based transient voltage suppressor rated 1500W peak pulse power at 10/1000 µs. With a 100V typical reverse standoff voltage, it clamps the transient at 162V maximum at the 9.3A peak pulse current — that 62V overhead between standoff and clamping ceiling is where the protection lives; it absorbs the surge energy and clamps the downstream circuit before the clamped voltage reaches it.
DO-214AB SMC package — surface-mount protection device
The part ships in tape-and-reel (TR) and cut-tape (CT) options in the SMC (DO-214AB) package footprint — a common pick-and-place land pattern for TVS diodes on the secondary side of DC rails and on signal lines. The SMC pad layout accepts a TVS at this footprint across multiple manufacturers, which matters when a cross-reference check is needed. Marked as general-purpose application and not rated for power-line protection — this device protects signal, control, and low-current bus lines from transients, not AC mains or high-current DC distribution.