75V rail clamp for general-purpose transient protection
The SMBJ75CA-13: This is a general-purpose protection part — suitable for DC power buses, signal lines, and I/O ports in industrial controls, telecom equipment, and power supplies where a 75V rail needs a bidirectional clamp without polarity concerns.
Package, temperature range, and production status
Housed in the DO-214AA (SMB) surface-mount package, the SMBJ75CA-13 operates from -55°C to +150°C junction temperature — the full industrial temperature band with margin for self-heating during a surge event. The single bidirectional channel replaces two unidirectional TVS diodes in anti-series, saving board area on a 75V rail. Diodes Incorporated lists this part as Active in production. No power line protection feature is claimed — this is a standard TVS, not a rail-clamp array with integrated filter. The base product number is SMBJ75; the -13 suffix denotes the tape-and-reel packaging variant.