1N4684/TR

Overview

The Microchip Technology 1N4684/TR is a single Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 3.3 V with a tolerance of ±5%. The component operates in a DO-7-2 through-hole package and supports a maximum power dissipation of 500 mW. It maintains a low maximum reverse leakage current of 7.5 uA at the specified test conditions. The device is rated for an operating temperature range from -65°C to +175°C, ensuring reliability in demanding environments.

Feature Summary

• Provides stable voltage regulation with a nominal 3.3 V Zener breakdown voltage.
• Engineered for high-temperature operation up to 175°C junction temperature.
• Utilizes a hermetically sealed glass axial leaded package for environmental protection.

Applications

• Precision voltage reference circuits
• Over-voltage protection stages
• Temperature-compensated bias networks

Procurement Notes

Verify the specific suffix designation against official Microchip documentation to confirm packaging configuration. Ensure that the procurement channel provides valid traceability records for this military-grade or high-reliability component variant. Confirm RoHS compliance status as indicated by the manufacturer's current product compliance declarations before finalizing acquisition.

Selection Notes

Select this component when a precise 3.3 V reference is required within a through-hole design. The wide thermal operating range makes it suitable for aerospace or industrial sectors. Compare the 5% voltage tolerance against application requirements to ensure adequate margin. Verify that the 500 mW power rating aligns with the expected dissipation in the target circuit topology.

Part Context

This part belongs to the standard Zener diode family manufactured by Microchip Technology. It shares common electrical characteristics with other variants in the series but differs in specific voltage ratings and packaging options. The 1N4684 designation identifies the specific 3.3 V breakdown characteristic within this broader portfolio of voltage regulator diodes.

Replacement Considerations

Cross-reference with other manufacturers offering equivalent 3.3 V Zener diodes in DO-7 or DO-35 packages. Verify pinout compatibility and thermal performance metrics before substitution. Ensure that any alternative component meets the same high-temperature operational specifications.