5 kW unidirectional Zener TVS in an axial R-6 package
The 5KP110A-TP is a unidirectional Zener-based transient voltage suppressor rated 5000 W peak pulse power — that 5 kW headline figure tells you it clamps high-energy surge events (lightning impulse, inductive kick, line fault transients) without propagating the overvoltage to downstream circuitry. The reverse standoff is 110 V typ; the minimum breakdown sits at 122 V; and at peak pulse current the clamping ceiling is 177 V, so the protected rail sees at most 177 V during a fault. The -55°C to 175°C junction temperature range puts this in the high-temperature-capable tier — it will survive a thermal runaway pulse better than a consumer-grade TVS derated to 150°C Tj.
Through-hole R-6: orientation is clear, no hot-air station needed
Packaging is tape-and-reel and cut tape, so pick-and-place or hand insertion both work. The through-hole form factor is a solid field-replaceable part — if the board is accessible, swapping it with a hot-air station is not required.
General-purpose 5KP series positioning
The base product number is 5KP, indicating this is part of the 5 kW unidirectional series — the '110' in the type code gives the nominal standoff voltage. Zener-type TVS devices of this class are deployed on power rails, communication bus protection points, and control lines where a clamped overvoltage event must not damage the IC front-end. The single unidirectional channel means it handles one polarity of surge — for AC lines or bipolar rails a matched pair or a different topology is required.