600W automotive TVS in a hand-solderable SMB package
The SMBJ17AQ-13-F: Its 27.6V clamping voltage at 21.7A peak pulse current (10/1000µs waveform) means it holds a 12V or 24V automotive bus below the downstream IC's absolute maximum rating during a load-dump or alternator surge. The DO-214AA (SMB) package is large enough to hand-solder with a fine-tip iron — no hot-air station required — and the JEDEC footprint is well-documented in hobbyist PCB tools like KiCad and Eagle. For a weekend ECU or sensor node project, this part is a solid choice.
Qualified to AEC-Q101, the SMBJ17AQ-13-F is screened for automotive-grade reliability: temperature cycling, high-temperature reverse bias, and ESD robustness. The -55°C to 150°C junction temperature range covers under-hood and engine-bay thermal profiles, with margin for self-heating during repetitive pulse events.
Package and board-fit details for the DO-214AA SMB
Surface-mount DO-214AA SMB package with tin-plated leads. The cathode band is marked on the body; the anode is the larger pad on the PCB footprint. Tape-and-reel (TR) and cut-tape (CT) options are available for both volume reflow and prototype hand-assembly.