1N4625D-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N4625D-1/TR is a hermetically sealed, single Zener diode designed for high-reliability applications. It features a nominal Zener voltage of 5.1 V with a tight tolerance of ±2%. The device operates in the DO-204AH (DO-35) axial through-hole package and dissipates up to 500 mW. It supports an extended operating temperature range from -65°C to +175°C and complies with MIL-PRF-19500/435 standards. Key electrical parameters include a maximum reverse leakage current of 5 µA at 3 V and a Zener impedance of 1500 Ohms.

Single Zener Diodes Feature Summary

• Hermetically sealed glass construction ensuring environmental stability
• Tight voltage tolerance of ±2% for precision regulation
• Extended thermal capability supporting operation up to +175°C
• Military-grade qualification compliant with MIL-PRF-19500/435

Single Zener Diodes Applications

• High-reliability aerospace power supply regulation
• Precision voltage reference circuits in defense systems
• Harsh environment protection and clamping applications
• Critical instrumentation requiring stable low-current biasing

Single Zener Diodes Procurement Notes

Verify that the specific suffix '-TR' corresponds to tape-and-reel packaging if reel handling is required, as standard JAN variants often ship in bulk. Confirm that the MIL-PRF-19500/435 certification is explicitly documented for this specific reel lot. Ensure the supplier provides full traceability documentation consistent with military procurement requirements.

Single Zener Diodes Selection Notes

Select this component when a 5.1 V reference requires tighter than standard ±5% tolerance. The DO-35 package suits designs needing axial leads for through-hole mounting. Consider the 500 mW power rating against expected dissipation. Verify compatibility with the -65°C to +175°C temperature range for the target application environment.

Single Zener Diodes Part Context

This part belongs to the 1N4625 series of low-power Zener diodes manufactured by Microchip Technology. It serves as a specialized variant of the commercial 1N4625, offering enhanced reliability through hermetic sealing and strict military compliance. The 'D' suffix typically denotes the ±2% voltage tolerance grade within the family.

Single Zener Diodes Replacement Considerations

JAN1N4625D-1 is a direct equivalent without the reel suffix. JANTX1N4625D-1 offers similar specifications but may differ in specific test conditions or screening levels. Verify pinout and package dimensions match before substitution.