Automotive-grade 1500W TVS for 12V rail clamping
The 1.5SMC13CAHE3/57T: With an 11.1V reverse standoff voltage, it stays transparent during normal operation and begins clamping at a minimum breakdown of 12.4V, holding the line to 18.2V maximum at the 82.4A peak pulse current.
Package and board-fit for the rework bench
Housed in a DO-214AB (SMC) package with supplier device package designation SMCJ, this is a surface-mount part with a large copper tab for heat sinking. The package is large enough to hand-rework with hot air — the tab wets well and the body marking is clear enough to identify pin 1 (cathode band on the bidirectional part is absent, but the orientation is symmetric for bidirectional). Operating junction temperature range spans -65°C to 150°C, covering the under-hood automotive thermal profile. The 1500W rating holds across the full temperature range with derating above 25°C per the TransZorb curve.
No pin-compatible second-source is recorded, but the 1.5SMC family includes other voltage variants sharing the same DO-214AB footprint.