36V reverse standoff — what the rail sees
Below 36V DC the part is effectively an open circuit; it clamps transients above the breakdown threshold at 40V minimum. Peak pulse power is rated 600W for a 10/1000µs waveform, corresponding to a peak pulse current of 10.3A and a maximum clamping voltage of 58.1V. That 58.1V ceiling is the voltage the protected circuit must survive during the surge.
This is a single-channel bidirectional device. On a 36V rail, a positive or negative transient is clamped symmetrically, which eliminates the need for two back-to-back unidirectional parts. That spans military cold-soak and underhood hot conditions, but the part carries no explicit AEC-Q100 grade — verify qualification if the target is automotive PPAP submission.
Active production — tape-and-reel delivery
Microchip Technology lists the SMBJ36CAE3/TR13 as Active. No LTB, no forced redesign window. The base product number is SMBJ36; the designator denotes the high-reliability screening flow. For volume BOM positions, this part is sourced and quoted per RFQ — no stock-holding claim, but the active status means lead times are standard for the Microchip TVS line.