1N4689-1E3/TR

Overview

The Microchip Technology 1N4689-1E3/TR is a single silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 5.1 V with a tolerance of ±5%. The device is rated for a maximum power dissipation of 500 mW and operates within a temperature range of -65 °C to +200 °C. Packaged in the DO-204AH (DO-35) through-hole glass axial leaded format, it is supplied in tape and reel packaging. Key electrical characteristics include a maximum reverse leakage current of 10 µA at 3 V and a forward voltage of 1.5 V at 100 mA.

Feature Summary

• Hermetically sealed glass construction for environmental stability
• Double slug type metallurgically bonded internal structure
• Through-hole axial leaded package for standard mounting

Applications

• Voltage reference circuits
• Overvoltage protection
• Clamping applications

Procurement Notes

Verify the specific suffix 'TR' indicates tape and reel packaging when ordering. Confirm RoHS compliance status as required by project specifications. Ensure the DO-204AH package dimensions match the PCB footprint design. Cross-reference the manufacturer part number with official Microchip documentation to confirm active status and availability before finalizing procurement plans.

Selection Notes

Select this component for designs requiring a precise 5.1 V reference with high thermal stability. The 500 mW power rating suits low-current regulation tasks. The wide operating temperature range supports harsh environment deployments. Verify that the through-hole package style aligns with the assembly process requirements.

Part Context

This part belongs to the 1N4689 series of 500 mW glass Zener diodes manufactured by Microchip Technology. The series offers a complete voltage range from 1.8 to 200 Volts. These diodes utilize double slug construction for improved performance over conventional designs. The product line is categorized under discrete semiconductor diodes and rectifiers.

Replacement Considerations

Compatible substitutes include the 1N4689B and 1N4689D variants which share similar electrical characteristics. Other manufacturers producing JEDEC 1N4689 equivalents may be considered if pin compatibility and voltage tolerances are verified.