What the 85V standoff and 1.5kW peak pulse mean for the board
The 1.5SMCJ85CA_R1_00001 is a unidirectional TVS diode — the "CA" suffix confirms bidirectional symmetry — designed to clamp transient voltage spikes on a line that should sit at up to 85V in normal operation. The 1500W peak pulse rating at the standard 10/1000 µs waveform means the device survives a single-event surge of that energy without degrading. At 10.4A peak pulse current, it handles the clamp current at the rated surge waveform, which determines whether the upstream supply or the TVS absorbs the fault energy first.
Breakdown floor and clamping ceiling — the two voltage specs that govern protection
The minimum breakdown voltage is 94.4V — the TVS stays invisible to the 85V line in normal operation and begins conducting only when the transient pushes the node above that threshold. Selecting a TVS with a standoff above your rail voltage and a clamping ceiling below the absolute-maximum rating of the protected IC is the core design decision.
SMC package, wide junction temperature, and what it means for assembly
Supplied on tape-and-reel for automated assembly — confirm the reel diameter matches your feeder before kitting.
No official Panjit cross-reference or successor part identified in the ledger for this specific order code.