1N4485C

Single Zener Diodes Overview

The Microchip Technology 1N4485C is a single Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 68 V with a tight tolerance of ±2%. The device is rated for a maximum power dissipation of 1.5 W and operates in the through-hole DO-204AL (DO-41) axial package. Key electrical characteristics include a maximum Zener impedance of 100 Ohms, a reverse leakage current of 250 nA at 54.4 V, and a maximum forward voltage of 1.5 V at 1 A.

Single Zener Diodes Feature Summary

• Provides precise voltage regulation with a nominal Zener voltage of 68 V and a tight manufacturing tolerance of ±2%.
• Capable of handling high power dissipation up to 1.5 W for robust performance in demanding circuits.
• Constructed in a durable through-hole DO-204AL (DO-41) axial leaded package suitable for standard PCB mounting.

Single Zener Diodes Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection stages in power supplies
• Clamping applications in signal conditioning paths

Single Zener Diodes Procurement Notes

Verify the specific suffix and manufacturer lot code against the original equipment manufacturer's documentation to ensure authenticity. Confirm that the component meets the required RoHS or non-RoHS status depending on the target assembly regulations. Cross-reference the datasheet revision history to validate electrical parameters before final integration into the design.

Single Zener Diodes Selection Notes

Select this component when a 68 V Zener voltage with high precision is required. Ensure the circuit can accommodate the 1.5 W power rating under worst-case thermal conditions. Verify that the DO-204AL package dimensions fit the available board space and that the axial leads align with the chosen mounting orientation.

Single Zener Diodes Part Context

This part belongs to Microchip Technology's portfolio of discrete semiconductor devices, specifically within the single Zener diode category. These components are widely used in industrial and consumer electronics for basic voltage stabilization tasks. The 1N4485C represents a standard industry form factor compatible with legacy designs while offering modern manufacturing consistency from a major supplier.

Single Zener Diodes Replacement Considerations

Direct substitutes must match the 68 V Zener voltage, 1.5 W power rating, and ±2% tolerance. Compatible packages include DO-41 or equivalent axial styles. Verify that alternative manufacturers offer similar Zener impedance and leakage current specifications to maintain circuit stability.