1N4625UR

Single Zener Diodes Overview

The Microchip Technology 1N4625UR 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 standard 5% tolerance. The device features an internal metallurgical bond, identified by the suffix, ensuring robust construction for high-reliability applications. Qualified levels include JAN, JANTX, JANTXV, and JANS per MIL-PRF-19500/435. Operating temperature ranges from -65°C to +175°C. Key electrical parameters include a maximum reverse leakage current of 5 µA at 3 V and a maximum Zener impedance of 1500 Ohms.

Single Zener Diodes Feature Summary

• Internal metallurgical bond construction for enhanced reliability
• Surface mount equivalent to JEDEC registered axial-leaded series
• Qualified for military standards including JANS level

Single Zener Diodes Applications

• High-reliability voltage regulation circuits
• Military and aerospace electronic systems
• Precision reference voltage sources

Single Zener Diodes Procurement Notes

Verify the specific qualification level (JAN, JANTX, JANTXV, or JANS) required for your application, as these prefixes denote different reliability grades within the same electrical specification. Confirm RoHS status if environmental compliance is mandatory, noting that some military variants may not be compliant. Ensure the DO-213AA footprint matches your PCB design constraints.

Single Zener Diodes Selection Notes

Select this component when a surface mount Zener diode with a metallurgical bond is required for rugged environments. Compare against axial equivalents like 1N4625-1 if through-hole mounting is preferred. Consider tighter tolerance variants if the standard 5% voltage accuracy is insufficient for the target circuit design.

Single Zener Diodes Part Context

This part belongs to the 1N4614UR-1 through 1N4627UR-1 series of 0.5 W glass surface mount Zener diodes. These devices are designed as direct surface mount replacements for traditional axial-leaded components, maintaining similar electrical characteristics while offering compact packaging suitable for modern assembly techniques.

Single Zener Diodes Replacement Considerations

Direct substitutes include other 1N4625 variants with different qualification prefixes such as JAN1N4625UR-1 or JANTX1N4625UR-1, provided the specific reliability grade meets system requirements.