Clamping performance and peak pulse rating
The SMCJ70CAQ-13-F: Peak pulse current is 13.3A at the 10/1000µs test condition — the clamping voltage of 113V times this current gives the 1.5kW rating, which is the thermal limit for a single pulse before junction temperature exceeds the 150°C absolute maximum.
Automotive grade and operating range
Part of the Automotive, AEC-Q101 qualified SMCJ series — this means it passed the stress tests required for deployment in under-hood and chassis electronics: temperature cycling, high-temperature reverse bias, and ESD robustness per the automotive discrete semiconductor standard.
Package and board integration
Housed in the DO-214AB (SMC) surface-mount package — the large copper tab on the bottom side carries the thermal path to the PCB. The supplier device package is SMC, which is the standard JEDEC designation for this footprint. Surface-mount mounting type means it reflows with standard lead-free profiles. No power line protection capability — this device is intended for signal and low-power rail clamping, not for AC mains or high-energy industrial bus protection. The bidirectional configuration (1 channel) suits it for protecting differential signal pairs or AC-coupled lines where the transient can swing both polarities.