2N5468

Overview

The Microchip Technology 2N5468 is a silicon planar Zener diode designed for voltage regulation and reference applications. It features a nominal Zener voltage of 3.9 V with a tolerance of ±5%. The device operates in the DO-35 axial leaded package, supporting through-hole mounting. Key electrical specifications include a maximum reverse leakage current of 5 µA at the rated voltage and a power dissipation rating of 500 mW. The component is tested at a current of 50 µA and can withstand a Zener test current up to 70 mA. It functions as a single configuration diode with a forward voltage of approximately 1.1 V.

Feature Summary

• Provides stable voltage regulation using a planar Zener structure
• Supports through-hole installation via an axial DO-35 package
• Capable of handling moderate power dissipation for reference circuits

Applications

• Voltage reference circuits requiring precise potential levels
• Overvoltage protection stages in low-power systems
• Clamping applications in signal conditioning paths

Procurement Notes

Verify the specific manufacturer lot and RoHS compliance status directly with authorized distributors or the manufacturer before procurement. Confirm that the DO-35 package dimensions match your PCB footprint requirements. Ensure the thermal management strategy accounts for the 500 mW power dissipation limit under worst-case operating conditions to maintain reliability.

Selection Notes

Select this component when a 3.9 V reference is required in a through-hole design. Compare the 5 µA leakage specification against circuit sensitivity requirements. Evaluate the 500 mW power rating against expected surge currents. Consider the DO-35 package constraints regarding board space and lead bending radius during assembly processes.

Part Context

This part belongs to the standard discrete semiconductor category within Microchip's portfolio. It serves as a fundamental passive-active hybrid component for analog circuit design. Unlike integrated solutions, it provides a standalone voltage reference point. The DO-35 form factor ensures compatibility with traditional manufacturing techniques and manual assembly workflows.

Replacement Considerations

Cross-reference with other manufacturers offering 3.9 V Zener diodes in the DO-35 package. Verify matching electrical parameters such as voltage tolerance, leakage current, and power dissipation. Ensure pinout compatibility and physical dimensions align with existing board layouts.