600W pulse rating — what the clamp voltage means on the bench
The SMBJ36A-13-F: At that pulse the clamping voltage hits 58.1 V maximum, limiting the spike the downstream IC sees. The 10.3 A peak pulse current (Ipp) tells you the diode can sink that much surge without opening. The 36 V reverse standoff voltage is the DC rail level the part sits across without conducting. Breakdown starts at 40 V minimum, so a 36 V supply rail stays protected while the diode stays off during normal operation.
DO-214AA SMB — board-fit and temperature range
Surface-mount in the DO-214AA (SMB) package — a common footprint shared across many TVS families. The supplier device package is also listed as SMB, so the pad layout is standard. Unidirectional, single-channel — one diode per package. Power line protection is not specified, so treat it as a signal-rail or low-voltage bus clamp, not a mains-side suppressor.