The 1.5SMCJ70AS_R1_00001: The 1.5 kW peak pulse rating defines the transient energy the device can absorb in a single-surge event without degradation — this is the primary selection criterion when protecting a rail against lightning-induced or switching transients on outdoor or long-cable runs.
Junction temperature and surge environment
Maximum junction temperature is 150 °C; the -55 °C low end covers cold-start and outdoor deployments without condensation-driven failure at power-on. The unidirectional single-channel topology means it clamps positive transients only — for bidirectional AC lines or dual-rail protection a matched pair or a separate bidirectional part is required. Standard tape-and-reel and cut-tape packaging suits high-volume SMT pick-and-place lines; the SMC (DO-214AB) footprint is among the most common TVS packages, meaning it is widely compatible with standard pad geometries used across multiple suppliers.
Active production status and sourcing posture
The manufacturer lists this part as Active, meaning it remains in normal production and is supported for new designs. This is a general-purpose part — no power-line-protection flag, so it is designed for board-level signal and rail protection, not for direct AC mains clamping.