1N4625UR/TR

Single Zener Diodes Overview

The Microchip Technology 1N4625UR/TR is a 0.5 W glass surface mount Zener voltage regulator in the DO-213AA package. It provides a nominal Zener voltage of 5.1 V with a standard tolerance of ±5%. The device operates within a temperature range of -65°C to +175°C and features a maximum reverse current of 5 µA at 3 V. Electrical characteristics include a test current of 250 µA, a maximum impedance of 1500 Ohms, and a typical voltage temperature coefficient ranging from -0.045%/°C to +0.030%/°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass DO-213AA (MELF) surface mount package
• Internal metallurgical bond construction for high reliability
• Inherently radiation hard design
• ESD nonsensitive per MIL-STD-750 Method 1020

Single Zener Diodes Applications

• Voltage regulation in harsh environments
• Reference voltage sources
• High-reliability electronic circuits

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration against the datasheet to ensure correct tolerance and packaging options. Confirm RoHS compliance status if required by the application, as indicated by the e3 suffix. Check thermal resistance requirements relative to the FR4 PCB footprint and copper weight specified in the mechanical data.

Single Zener Diodes Selection Notes

Select this component for applications requiring a 5.1 V reference in a compact surface mount form factor. Ensure the operating current remains within the specified limits to maintain regulation accuracy. Consider the thermal derating curve when designing for ambient temperatures exceeding 25°C or end-cap temperatures above 100°C.

Single Zener Diodes Part Context

This part belongs to the 1N4614UR through 1N4627UR series of 0.5 W glass surface mount Zeners. It serves as the surface mount equivalent to the JEDEC registered axial-leaded 1N4625 diode. The series offers voltages from 1.8 to 100 V with various tolerance options.

Single Zener Diodes Replacement Considerations

Direct replacement equivalents include the axial-leaded 1N4625 and the MLL4625. Verify pinout compatibility and thermal management capabilities when substituting with other surface mount packages.