600 W bidirectional clamp for 15 V rails
The SMBJ15CAQ-13-F: It is a bidirectional device (single channel), so it protects signal or power lines where the transient can swing positive or negative relative to ground — no polarity concern during installation. The breakdown voltage range starts at 16.7 V minimum, meaning the diode begins conducting before the protected rail sees damaging overvoltage.
Automotive qualification and temperature envelope
Graded as Automotive and qualified to AEC-Q101, this part is screened for the reliability and temperature demands of under-hood and chassis-mounted electronics — the -55 °C to +150 °C junction temperature range covers cold cranking and under-hood soak-back. The AEC-Q101 stamp means the part passed the full suite of automotive stress tests: high-temperature reverse bias, temperature cycling, and ESD robustness per the standard.
Package and board integration
Housed in the DO-214AA (SMB) surface-mount package, the SMBJ15CAQ-13-F uses the standard JEDEC footprint for this body size — the cathode band is absent on a bidirectional device, so orientation is non-polarised.