1N4922A

Overview

The Microchip Technology 1N4922A is a temperature-compensated Zener reference diode with a nominal voltage of 19.2 V and a tolerance of ±5%. It operates in the DO-35 axial package, supporting a DC power dissipation of 500 mW at +50°C with a derating factor of 4 mW/°C above this threshold. The device features a maximum reverse leakage current of 15 µA and maintains an operating temperature range from -65°C to +175°C.

Feature Summary

• Temperature compensated design for stable reference performance
• Low noise characteristics suitable for precision applications
• Metallurgically bonded construction with double plug technology

Applications

• Precision voltage reference circuits
• Temperature compensated regulation systems
• Low noise analog signal conditioning

Procurement Notes

Verify the specific suffix against official datasheets to confirm exact electrical tolerances and packaging configurations. Ensure compliance with RoHS status requirements for the target application environment. Confirm that the axial leaded format aligns with the intended PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when a stable 19.2 V reference is required across extreme temperature variations. The metallurgical bonding ensures reliability in harsh environments where standard junctions may drift. Evaluate thermal management needs based on the 500 mW dissipation limit and the specified derating curve above 50°C.

Part Context

This part belongs to the 1N4916 through 1N4932A series of temperature-compensated Zener diodes manufactured by Microchip Technology. These components are designed to provide high stability and low noise compared to standard Zener diodes, making them suitable for critical reference applications requiring consistent performance over wide temperature ranges.

Replacement Considerations

Consult official substitution guides for equivalent temperature-compensated Zener diodes with matching 19.2 V nominal voltage and DO-35 package dimensions. Verify that any alternative component meets the same ±5% tolerance and thermal derating specifications.