Active production – 500W bidirectional Zener TVS
It clamps transients at a maximum of 25.1V, with a minimum breakdown voltage of 17.1V. The part is bidirectional, protecting both polarities on a single line. Lifecycle status is Active — Microchip continues to manufacture this part, so it is a current-production choice for new designs or replacement stock.
Breakdown and clamping – what the numbers mean
The 17.1V minimum breakdown voltage sets the threshold where the diode starts conducting. The 13.7V reverse standoff voltage is the maximum continuous DC voltage the part can withstand without significant leakage — your signal or power rail should stay below this. When a surge hits, the clamping voltage peaks at 25.1V at the rated 19.9A peak pulse current. The 500W peak pulse power rating defines the energy-handling capability for a 10/1000µs pulse. For shorter or longer pulses, derate per the datasheet curve; the axial package (B, Axial) dissipates heat through the leads, so board copper area matters for repetitive surge applications.
Package and temperature range
Housed in a B, Axial through-hole package, the 1N6112A is a two-lead device suited for point-to-point wiring or PCB mounting with lead forming. No power line protection — this part is designed for signal or low-power rail clamping, not for mains AC line protection. It is a general-purpose component for transient suppression on data lines, I/O ports, or DC power inputs.