1N4686 BK TIN/LEAD

Overview

The Central Semiconductor Corp 1N4686 BK TIN/LEAD is a silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 3.9 V with a tight tolerance of 5%. The device operates in a through-hole DO-35 package and dissipates up to 500 mW of power. Key electrical characteristics include a maximum reverse leakage current of 5 uA, a Zener impedance of 200 ohms, and a test current of 50 uA. It supports a wide operating temperature range from -65°C to +175°C.

Feature Summary

• Provides stable voltage regulation at a nominal 3.9 V level
• Constructed with silicon material for reliable performance
• Designed for single configuration circuit integration

Applications

• Voltage reference circuits
• Overvoltage protection systems
• General-purpose voltage regulation

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm lead finish and packaging details. Ensure the selected variant matches the required thermal and electrical specifications for the target application environment. Cross-reference datasheet parameters with system requirements before finalizing procurement decisions.

Selection Notes

Select this component when a 3.9 V Zener voltage with 5% tolerance is required in a DO-35 through-hole package. Consider the 500 mW power dissipation limit and the specified operating temperature range of -65°C to +175°C. Verify that the 5 uA maximum reverse leakage current meets the circuit's isolation needs.

Part Context

This part belongs to the standard Zener diode family manufactured by Central Semiconductor Corp. It utilizes a glass-passed silicon junction within a DO-35 axial leaded package. The tin/lead finish indicates a specific terminal plating option available for this series.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data.