AEC-Q101 qualified transient-voltage suppression for 12 V automotive buses
The SMCJ6.0CAQ-13-F: The -55°C to +150°C junction temperature range covers under-hood and engine-bay environments where ambient temps can exceed 105°C.
Clamping voltage and peak current — what they mean for rail protection
The 6.67V minimum breakdown voltage ensures the device does not conduct during normal bus ripple up to 6V. For shorter transients (e.g., 8/20µs ESD strikes), the effective power handling is significantly higher — this is a common selection point when comparing TVS diodes for IEC 61000-4-5 surge compliance.
Package integration and supply posture
Housed in the DO-214AB (SMC) surface-mount package, the device has a large copper pad on the cathode side that conducts heat to the PCB plane. The SMC footprint is shared across the SMCJ family, so a single board layout can accommodate multiple voltage variants without a respin.