Transient protection for a 130 V DC rail
The SMBJ130CA-13-F: The 144 V minimum breakdown voltage ensures the device remains non-conductive under normal operating conditions, while the 209 V maximum clamping voltage at 2.9 A peak pulse current defines the voltage the protected circuitry must survive during an event.
The 2.9 A peak pulse current at the clamping voltage tells you the surge current the TVS can repeatedly absorb without degrading — useful when sizing the upstream fuse or PTC to coordinate the let-through energy. The -55°C to 150°C junction temperature range covers both cold-start and under-hood ambient conditions.
DO-214AA SMB — board-fit and sourcing
Housed in the DO-214AA (SMB) surface-mount package, the SMBJ130CA-13-F shares the standard 0.200-inch by 0.128-inch footprint common across the SMBJ family. The single bidirectional channel means one device clamps both polarities — a single component across a differential pair or a single-ended rail referenced to ground. The base product number SMBJ130 covers the full unidirectional and bidirectional variants in this voltage class.