Zener TVS for 170V rails — breakdown and clamp thresholds
The 1N6071A/TR is a bidirectional Zener transient-voltage-suppression diode from Microchip Technology, housed in a DO-13 through-hole package. It protects a 170V nominal rail (reverse standoff) with a minimum breakdown voltage of 190V and a maximum clamping voltage of 294V at the rated peak pulse current of 5.1A (10/1000µs waveform). Rated for 1500W peak pulse power, the part handles surge events on industrial power buses, telecom rectifiers, or motor-drive DC links without sacrificing the wide -55°C to 175°C junction temperature range.
Bidirectional protection in a DO-13 can
A single bidirectional channel means the 1N6071A/TR clamps both polarities of a transient — no need for two series diodes or a bridge arrangement on the PCB. The DO-13 metal can (through-hole) provides a robust hermetic seal, suitable for high-reliability or military-grade environments where plastic packages risk moisture ingress. The 294V clamping ceiling at 5.1A peak pulse current gives a clear voltage margin above the 170V standoff, keeping downstream semiconductors inside their V(BR) limits during a surge.
Active production — no obsolescence pressure
Microchip lists the 1N6071A/TR as Active. Supplied on Tape & Reel (TR) for automated through-hole insertion, the DO-13 package is also available in bulk or tube — confirm the preferred packaging with your BOM quantity.