The 1.5SMC56A-Q: It clamps at 77 V maximum with a 19.7 A peak pulse current, and its 47.8 V reverse standoff voltage defines the continuous DC operating level it protects.
Automotive qualification and temperature range
This part carries an Automotive grade designation and is AEC-Q101 qualified, meaning it meets the stress and reliability requirements for under-hood and chassis-mounted electronics in passenger vehicles.
The SMC footprint is standard across the 1.5SMC family, so the same PCB land pattern serves multiple voltage variants without a layout change.