The 5KP160A delivers 5000 W peak pulse capacity (10/1000 µs waveform) — that headroom determines which transients the clamp absorbs before the clamping voltage stresses the downstream load. A 5 kW TVS sits between a local bus clamp and a full-panel suppressor; it protects against inductive kick and ESD without requiring the bulk of a distributed suppression network.
Standoff, breakdown, and clamping — the three voltage numbers that decide fit
Once in conduction, the clamping voltage maxes at 259 V at the 19.7 A peak pulse current — that clamping ceiling is the stress the protected IC or bus sees. Picking the standoff below your rail voltage keeps idle leakage within budget; picking a breakdown above your transient threshold avoids nuisance triggering.
The through-hole P600 axial package mounts to a PCB pad and relies on the board copper for heat sinking; thermal pad and trace width matter at continuous currents. Unidirectional single-channel protection — the polarity matters on the board. The cathode ties to the node to be protected; the anode references ground. Wrong orientation turns the TVS into a forward-conducting clamp at 0.7 V, offering no protection against overvoltage.