Telecom surge protection in a DO-214AA footprint
The 1.5SMB82CA: The clamping voltage peaks at 113V at the 13.5A pulse current, which keeps the downstream transceiver within its 150V absolute-max rating with margin.
Bidirectional clamping for AC-coupled signal pairs
This is a single-channel bidirectional device, meaning it clamps symmetrically on both polarities — no orientation concern when soldering onto a differential signal pair or an AC-coupled line. The DO-214AA (SMB) package is a standard surface-mount footprint shared across the 1.5SMB family, so the pad layout stays the same if you need to swap to a different voltage variant in the same series. The operating temperature range spans -65°C to 150°C junction, which covers outdoor telecom cabinets that see summer heat soak and winter cold starts without derating the surge capability.
The base product number is 1.5SMB, and the 82CA suffix denotes the 82V bidirectional variant. When sourcing, confirm the reel quantity (tape and reel packaging) matches your pick-and-place setup — the DO-214AA carrier tape pitch is standard for SMB diodes.