The 1N6372/TR is a Zener TVS diode from Microchip Technology, designed for general-purpose circuit protection in through-hole applications. It delivers a peak pulse power rating of 1500W (1.5kW) under the 10/1000µs waveform, making it suitable for clamping transients on power rails and signal lines where a single bidirectional channel is sufficient. The breakdown voltage minimum is 52.9V, with a reverse standoff of 45V and a clamping maximum of 70V at 19A peak pulse current. This means the part starts conducting around 53V and clamps hard at 70V, protecting downstream silicon rated for 75V or higher.
Active production — sourcing through distribution
The DO-13 package is a metal-stud through-hole package compatible with legacy PCB layouts.
Operating temperature and environmental fit
The 1N6372/TR is rated for a junction temperature range of -65°C to 175°C, which covers military, aerospace, and downhole applications where extreme thermal cycling is expected. The wide range also means the device can be used in outdoor telecom cabinets and engine-bay electronics without derating concerns at the high end. Note that power line protection is not listed as supported — this part is intended for secondary transient suppression, not primary AC mains clamping. The bidirectional channel configuration simplifies PCB layout by eliminating polarity concerns.