1500W surge rating and protection window
The 1.5SMC43CA TR13 PBFREE: The reverse standoff voltage is 36.8V, meaning it starts clamping above that rail and holds the line at 59.3V max clamping at the full 25.3A peak pulse current. That protection window fits a 36V bus or a 24V rail with margin for transients. Breakdown voltage min is 40.9V, so the device begins conducting before the clamping limit is reached. The single bidirectional channel handles both positive and negative surges, saving one diode per protected line.
DO-214AB SMC — footprint and thermal handling
Housed in the standard DO-214AB (SMC) surface-mount package. The SMC body is larger than the smaller SMA/SMB siblings, which helps spread the 1500W pulse heat into the PCB copper. Tape-and-reel packaging (TR13 suffix) suits pick-and-place volume; cut tape is also available for prototypes or small runs.
Temperature range and application fit
The device is marked as General Purpose in application, so it fits power-supply input protection, signal-line clamping, and DC bus transient suppression without special derating for frequency or data rate.