What 5KP130A-TP actually is — and why 5 kW matters here
The 5KP130A-TP is a unidirectional Zener-based TVS (transient voltage suppressor) in a standard R-6 axial leaded package, rated to absorb 5000 W of peak pulse power. 130 V is the reverse standoff voltage — the level the TVS sits across during normal operation without conducting. The minimum breakdown of 144 V is where it starts clamping; 209 V is the ceiling at which the clamping voltage is guaranteed during the defined surge event. If your supply rail is 130 V or below and the transient spike exceeds 144 V, the TVS clamps the overvoltage at 209 V and conducts the surge current away from the load. The -55°C to 175°C junction temperature range means this part lives comfortably in industrial enclosures and under-hood zones without derating concerns at the low end.
Package and board-level fit for through-hole assembly
R-6 axial package, through-hole mounting — the leads pass through the PCB and are wave-soldered or hand-soldered. Available on tape-and-reel (TR) for automated insertion or cut tape (CT) for prototype runs or hand-assembly. The axial leadform means thermal relief on the leads is the primary heatsinking mechanism; there is no exposed pad or thermal via array to manage, unlike a surface-mount TVS in DO-214AA/AB.
The base product number 5KP is the series designator; the 130 in the type number designates the standoff voltage. Pin-compatible alternatives in the same series (same package, same lead spacing, different voltage) are available from multiple suppliers if you need a second source or a different standoff rating for a related board spin.