1N1374

Overview

The Microchip Technology 1N1374 is a silicon Zener diode designed for high-power voltage regulation applications. It features a nominal reference voltage of 91 V with a maximum tolerance of 10%. The device is rated for a maximum power dissipation of 10 W and operates at a test current of 50 mA. It utilizes a unidirectional configuration housed in a DO-4 metal package with a solder lug terminal, suitable for post/stud mount installation.

Feature Summary

• High power handling capability with a 10 W dissipation rating
• Robust metal construction in a DO-4 package for thermal stability
• Precision voltage regulation with 10% tolerance at 91 V

Applications

• High-voltage power supply regulation
• Overvoltage protection circuits
• Voltage reference standards

Procurement Notes

Verify the specific suffix (e.g., E3) to confirm compliance status and exact pin configuration. Confirm that the DO-4 package style matches the mechanical constraints of the target assembly. Ensure the 91 V nominal voltage aligns with the circuit design requirements before procurement.

Selection Notes

Select this component when a stable 91 V reference is required in high-power environments. The DO-4 package allows for direct mounting to heatsinks or chassis structures. Verify that the 10 W power rating accommodates the expected thermal load without exceeding junction temperature limits.

Part Context

This part belongs to the standard Zener diode family from Microchip Technology. It is distinct from rectifier diodes such as the 1N1347A by its specific breakdown voltage characteristics and unidirectional operation mode intended for regulation rather than conversion.