1500W bidirectional Zener TVS in an axial leaded package
The 1N6149A is a single bidirectional Zener TVS diode from Microchip Technology, rated for 1500W peak pulse power at 10/1000µs. It clamps at 27.7V maximum with a 15.2V reverse standoff, handling 54.2A peak pulse current. The axial package makes it a straightforward through-hole install for board-level or point-of-entry surge protection.
Active production — no end-of-life pressure
Microchip lists the 1N6149A as Active.
Temperature grade and environment
Rated for -55°C to 175°C junction temperature, the 1N6149A suits harsh environments where commercial-grade TVS diodes would derate or fail — engine bay electronics, downhole instrumentation, avionics, and outdoor telecom enclosures.