1N3985

Single Zener Diodes Overview

The Microchip Technology 1N3985 is a single Zener diode designed for voltage regulation and reference applications. It features a nominal Zener voltage of 6.2 V with a tolerance of ±5%. The device is rated for a maximum power dissipation of 500 mW at ambient temperatures up to 75°C, derating linearly above this threshold. It utilizes the DO-35 axial leaded package, suitable for through-hole mounting on printed circuit boards. The component operates within a junction temperature range of -65°C to +175°C and maintains a specified reverse leakage current of 5 µA at 4.7 V.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation in low-power circuits
• Capable of handling high thermal loads with extended operating temperature limits
• Offers precise voltage tolerance for accurate reference applications

Single Zener Diodes Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection stages in signal paths
• Clamping applications for transient suppression

Single Zener Diodes Procurement Notes

Verify the specific suffix codes against official Microchip documentation to confirm exact electrical tolerances and packaging variations. Confirm RoHS compliance status as historical batches may differ from current manufacturing runs. Ensure the procurement channel provides traceability certificates if required for quality assurance protocols. Cross-reference the manufacturer part number with authorized distributor databases to validate authenticity and avoid counterfeit components.

Single Zener Diodes Selection Notes

Select this component when a 6.2 V reference point is required in through-hole designs. Evaluate the thermal management requirements to ensure the 500 mW rating suffices for the expected load conditions. Consider the ±5% tolerance against the precision needs of the target application. Verify that the DO-35 package dimensions fit the available board space and mounting constraints.

Single Zener Diodes Part Context

This component belongs to the standard Zener diode family produced by Microchip Technology. It serves as a fundamental passive semiconductor device used across various electronic systems. The DO-35 package represents a legacy form factor widely adopted in industrial and consumer electronics. Its specifications align with general-purpose voltage regulation tasks rather than high-power switching roles.

Single Zener Diodes Replacement Considerations

Direct substitutes include other manufacturers' DO-35 packaged Zener diodes with identical 6.2 V ratings and 500 mW power dissipation capabilities. Verify that alternative parts match the ±5% tolerance and reverse leakage current specifications to maintain circuit performance equivalence.