1N4620UR-1/TR

Single Zener Diodes Overview

The 1N4620UR-1/TR is a Zener diode manufactured by Microchip Technology, designed for voltage regulation applications. It features a nominal Zener voltage of 3.3 V with a maximum impedance of 1650 Ohms. The device operates within a temperature range of -65°C to 175°C and utilizes an axial-leaded glass DO-35 package. This component belongs to the 1N4614-1 through 1N4627-1 series, which are metallurgically bonded glass Zener diodes qualified per MIL-PRF-19500/435 standards.

Single Zener Diodes Feature Summary

• Metallurgically bonded glass construction for high reliability
• Qualified per MIL-PRF-19500/435 military standards
• Wide operating temperature range suitable for harsh environments

Single Zener Diodes Applications

• High-reliability voltage regulation circuits
• Military and aerospace electronic systems
• Harsh environment instrumentation

Single Zener Diodes Procurement Notes

Verify the specific suffix UR-1/TR against official Microchip documentation to confirm tape-and-reel packaging and exact qualification level. Ensure compatibility with MIL-PRF-19500/435 requirements if military grade certification is mandatory for the application design.

Single Zener Diodes Selection Notes

Select this component when a 3.3 V Zener reference is required in a DO-35 package with extended temperature capabilities. Consider the 1650 Ohm impedance value for circuit stability. Verify that the axial leaded form factor fits the PCB layout constraints compared to surface mount alternatives.

Single Zener Diodes Part Context

This part is part of the 1N46xx series of 500 mW Zener diodes produced by Microchip Technology. The series includes various voltage options from 1.8 V to 100 V. These diodes are known for their robust glass encapsulation and are often specified for applications requiring compliance with rigorous military quality standards.

Single Zener Diodes Replacement Considerations

Public confirmed substitute part numbers include JAN1N4620D-1/TR, JANTX1N4620D-1, and JANTXV1N4620D-1. These variants share similar electrical characteristics but may differ in tolerance or specific military qualification levels.