Clamp voltage and pulse current — what they mean on the board
The SMBJ6.0CA-13-F: The DO-214AA (SMB) footprint mates with standard SMB pads; the 600 W rating at 25°C ambient derates with temperature, so the effective pulse-handling at 85°C ambient is roughly 70% of the 25°C figure — factor that into the surge budget for an industrial or automotive environment.
