350V rail clamp for high-voltage DC buses
The SMBJ350A-13-F: Its 391V minimum breakdown voltage means it stays out of the way during normal operation, and the 567V clamping voltage limits the peak let-through to 1.1A under the 10/1000µs pulse shape. With a 600W peak pulse power rating, it handles moderate surges on telecom rectifiers, industrial DC buses, or solar combiner boxes without needing a larger package.
DO-214AA SMB package and rework
Housed in the standard DO-214AA (SMB) surface-mount package, this part is a straightforward hand-rework candidate. The body is large enough to grip with tweezers, and the two-terminal footprint is easy to align under a hot-air station. The -55°C to 150°C junction temperature range covers both cold-start and hot-soak conditions in outdoor or engine-bay enclosures.