1N4689UR-1E3

Single Zener Diodes Overview

The 1N4689UR-1E3 is a single Zener diode manufactured by Microchip Technology, designed for surface mount applications. It features a DO-213AA (SMB) package and provides a nominal voltage regulation of 5.1 V with a tolerance of ±5%. The device supports a maximum power dissipation of 500 mW and operates within a junction temperature range of -65°C to +175°C. Leakage current is specified at 10 μA when tested at 3 V.

Single Zener Diodes Feature Summary

• Surface mount construction in a compact DO-213AA package
• High thermal stability with an extended operating junction temperature range up to 175°C
• Precision voltage regulation capability with tight tolerance

Single Zener Diodes Applications

• Voltage regulation circuits
• Overvoltage protection systems
• Reference voltage generation

Single Zener Diodes Procurement Notes

Verify component authenticity through authorized Microchip Technology distributors or direct channels. Confirm RoHS compliance status as some sources indicate non-compliance while others suggest the E3 suffix denotes environmental adherence. Request official datasheets and material declarations prior to procurement to ensure regulatory alignment with specific project requirements.

Single Zener Diodes Selection Notes

Select this component for designs requiring robust surface mount Zener regulation with high thermal endurance. Ensure the PCB layout accommodates the DO-213AA footprint and that the circuit design respects the 500 mW power dissipation limit under worst-case thermal conditions. Validate input voltage ranges against the 5.1 V breakdown characteristic.

Single Zener Diodes Part Context

This part belongs to Microchip's series of single Zener diodes intended for general-purpose voltage regulation. The UR-1 designation typically indicates a specific tape-and-reel packaging format, while the E3 suffix generally signifies lead-free composition. It serves as a discrete solution for clamping and reference applications in consumer and industrial electronics.

Single Zener Diodes Replacement Considerations

The 1N4689UR-1E3/TR is listed as a related variant offering RoHS compliance. Verify pinout compatibility and electrical parameter equivalence before substitution. Cross-reference with other SMB-packaged 5.1 V Zener diodes from alternative manufacturers if supply constraints exist.