1N4689UR-1E3/TR

Single Zener Diodes Overview

The Microchip Technology 1N4689UR-1E3/TR is a 0.5 W glass surface mount Zener voltage regulator in the DO-213AA (MELF) package. It provides a nominal Zener voltage of 5.1 V with a standard tolerance of ±5%. The device operates at a test current of 50 µA and features a maximum reverse leakage current of 10.0 µA at 3.0 V. It supports a maximum DC Zener current of 110 mA and maintains operation within a junction temperature range of -65°C to +175°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass DO-213AA MELF package with internal metallurgical bond for high reliability.
• Surface mount equivalent of JEDEC registered 1N4678 thru 1N4717 series.
• RoHS compliant commercial grade device available.

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges.
• Applications requiring inherent radiation hardness.
• Circuits needing minimal capacitance characteristics.

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required RoHS compliance status, as the 'e3' designation indicates RoHS compliance for commercial grades only. Confirm tape and reel packaging requirements against EIA-481-1-B standards when sourcing this component. Ensure compatibility with the specified hermetic sealing and metallurgical bonding construction for intended environmental conditions.

Single Zener Diodes Selection Notes

Select this component for applications requiring a 5.1 V reference in a surface mount MELF package. Consider the low test current of 50 µA for low-power biasing scenarios. Evaluate the thermal resistance parameters if mounting on FR4 PCBs. Verify that the ±5% voltage tolerance meets circuit precision requirements without additional screening.

Single Zener Diodes Part Context

This part belongs to the 1N4678UR-1 through 1N4717UR-1 series of 0.5 W Zener diodes. It serves as the surface mount counterpart to the axial leaded 1N4678-1 through 1N4717-1 series. The series covers a voltage selection from 1.8 V to 43 V, offering standard 5% tolerances with options for tighter 1% and 2% specifications.

Single Zener Diodes Replacement Considerations

The 1N4689UR-1 is the non-RoHS version of this component. Equivalent axial leaded parts include the 1N4689-1. Other series members like 1N4688UR-1 or 1N4690UR-1 may substitute if different voltage ratings are acceptable.