1N4768

Overview

The Microchip Technology 1N4768 is a temperature-compensated Zener reference diode designed for precision voltage regulation applications. It features a nominal Zener voltage of 20 V with a tolerance of ±5%. The device operates within a power dissipation rating of 500 mW at +50°C, utilizing a DO-35 axial through-hole package. Key electrical characteristics include a maximum reverse leakage current of 10 µA and a test current of 1.0 mA. The component supports an extended operating temperature range from -65°C to +175°C, ensuring stability in demanding environments.

Feature Summary

• Temperature compensated design for stable reference performance across wide thermal ranges
• Precision voltage regulation with tight tolerance specifications
• Robust construction suitable for high-reliability industrial applications

Applications

• Precision voltage reference circuits
• Temperature compensated regulator designs
• High-stability power supply references

Procurement Notes

Verify the specific suffix (e.g., A, UR) against official datasheets as packaging and compliance status vary. Confirm RoHS and REACH compliance requirements prior to procurement. Check manufacturer lead times due to potential long delivery periods. Ensure the selected variant matches the required package style and testing conditions specified in the technical documentation.

Selection Notes

Select this component when a stable 20 V reference is required over extreme temperatures. Compare dynamic impedance and leakage current specs against circuit requirements. Verify that the 500 mW power rating accommodates the expected thermal environment without excessive derating. Consider the DO-35 package constraints for PCB layout and mounting.

Part Context

This part belongs to the 1N4765 through 1N4774A series of temperature-compensated Zener diodes manufactured by Microchip Technology. These devices are engineered for applications requiring superior voltage stability compared to standard Zener diodes. The series utilizes metallurgically bonded double plug construction to enhance reliability and performance consistency.

Replacement Considerations

Direct substitutes within the same Microchip series include 1N4765A, 1N4767A, 1N4769A, and 1N4772A. Verify that alternative part numbers match the exact Zener voltage and package type required for the specific application.