1N4686 TR PBFREE

Overview

The Central Semiconductor Corp 1N4686 TR PBFREE is a silicon Zener diode designed for low-level applications requiring extremely low operating current and leakage. It features a nominal Zener voltage of 3.9 V with a 5% tolerance, tested at a current of 50 μA. The device supports a maximum power dissipation of 500 mW and operates within a junction temperature range of -65°C to +200°C. It utilizes the DO-35 axial leaded package.

Feature Summary

• Designed for applications requiring extremely low operating current and low leakage
• Features a 5% voltage tolerance for precise regulation
• Capable of operation across an extended temperature range

Applications

• Low-level voltage reference circuits
• Precision voltage regulation
• Low-power signal conditioning

Procurement Notes

Verify that the ordering suffix 'TR' corresponds to the specific reel packaging configuration required by your assembly line. Confirm that the 'PBFREE' designation aligns with environmental compliance standards mandated by your manufacturing facility. Ensure the component matches the DO-35 mechanical outline specifications provided in the datasheet.

Selection Notes

Select this component when circuit design requires a stable 3.9 V reference with minimal quiescent current draw. The low reverse leakage characteristic makes it suitable for high-impedance nodes. Verify that the 500 mW power rating accommodates the expected thermal load under worst-case operating conditions.

Part Context

This part belongs to the 1N4678 through 1N4717 series of silicon Zener diodes manufactured by Central Semiconductor Corp. The series covers a voltage range from 1.8 V to 43 V, all sharing common electrical characteristics such as low test currents and tight tolerances. These devices are intended for general-purpose low-power regulation tasks.

Replacement Considerations

Cross-reference with other manufacturers offering 1N4686 equivalents in the DO-35 package. Ensure substitute parts maintain the same 50 μA test current requirement and 500 mW power dissipation rating to guarantee functional compatibility.