Clamping parameters and transient protection
The 1.5SMC100CA-M3/57T: The 137 V clamp ceiling means a 24 V or 48 V bus riding on a 85.5 V standoff sees the transient clipped before it reaches the downstream regulator's abs-max — the 1500 W rating handles surges from inductive load dumps or lightning-coupled events on outdoor cabling.
Package and board integration
Housed in a DO-214AB (SMC) package with a surface-mount footprint, the device operates across -65°C to 150°C junction temperature. The SMC body is larger than the SMA/SMB siblings, which translates to better thermal transfer from the die to the PCB copper — important for sustaining repetitive pulse trains without derating.