Clamping voltage and the protection envelope
The 1.5SMC11CA: Its 15.6 V maximum clamping voltage at the 97.4 A peak pulse current (10/1000 µs waveform) defines the voltage the downstream circuitry must survive — a 12 V-rated input stage on a DC-DC converter or a 12 V logic supply has margin above the clamp. The 10.5 V minimum breakdown voltage ensures the device starts conducting before the rail exceeds the safe operating area of the protected ICs.
Package and board-fit for the DO-214AB footprint
Housed in the DO-214AB (SMC) package, the 1.5SMC11CA is a surface-mount device with a large copper tab for heat sinking during the pulse event.
Active production and sourcing posture
No pin-compatible second-source or successor is recorded — the 1.5SMC series is the active family, and this order code is the direct selection for a 9.4 V bidirectional clamp at 1500 W.