TVS diode for 100V rail protection
The SMCJ100CA-13: With a breakdown voltage minimum of 111V and a clamping voltage of 162V at 9.3A peak pulse current, the device triggers before the protected circuitry sees damaging overvoltage. The 100V reverse standoff rating matches the nominal rail voltage, so the diode stays off during normal operation.
Package and board integration
Housed in the DO-214AB (SMC) surface-mount package, the SMCJ100CA-13 suits standard reflow assembly. The SMC footprint is larger than the smaller SMA/SMB siblings, providing better heat dissipation for the 1500W pulse — the copper pad area under the cathode tab directly influences the thermal impedance during a surge event. No power line protection is built in — this is a standalone transient suppressor, not a filtered protector.
For BOM planning, the base product number SMCJ100 covers the unidirectional and bidirectional variants in this voltage class — the -13 suffix indicates Tape & Reel packaging.