What the 28V reverse standoff and 1500W rating mean for your rail
The SMCJ28A-13-F: The 28V reverse standoff voltage is the maximum DC voltage the diode can block without conducting leakage — your rail should stay at or below this level during normal operation.
Package, mounting, and temperature range
Housed in the DO-214AB (SMC) surface-mount package, this TVS diode is a standard footprint for 1500W-class devices. The supplier device package is also designated SMC. Mounting is surface mount, and the operating junction temperature range spans -55°C to 150°C, covering industrial and most automotive under-hood ambient conditions without derating concerns at the high end.
Sourced to order against your BOM quantity through independent distribution. The DO-214AB SMC package is a common footprint, so the reels store dry and the part is not moisture-sensitive beyond standard MSL precautions for the package.