1N4932A

Overview

The Microchip Technology 1N4932A is a temperature-compensated Zener reference diode designed for precision voltage regulation applications. It features a nominal Zener voltage of 19.2 V with a tight tolerance of ±5%. The device utilizes metallurgically bonded construction and double plug design to ensure stability and low noise performance. Rated for a maximum DC power dissipation of 500 mW at +50°C, it supports operation within an extended temperature range from -65°C to +175°C. The component is housed in a DO-35 axial through-hole package, suitable for general-purpose circuit protection and reference voltage generation.

Feature Summary

• Temperature compensated Zener reference design
• Metallurgically bonded construction for reliability
• Low noise performance characteristics
• Extended operating temperature capability

Applications

• Precision voltage reference circuits
• Temperature compensated regulation systems
• General purpose circuit protection

Procurement Notes

Verify the specific suffix designation against official Microchip documentation to confirm exact tolerance and packaging variations. Ensure the procurement channel provides valid manufacturer traceability. Confirm RoHS compliance status as indicated in current datasheets before finalizing orders. Cross-reference the part number with the latest product change notifications to avoid obsolete stock issues.

Selection Notes

Select this component when a stable 19.2 V reference is required under varying thermal conditions. The ±5% tolerance offers a balance between precision and cost-effectiveness compared to tighter grades. Verify that the 500 mW power rating aligns with the expected thermal environment and derating requirements. Ensure the DO-35 package fits the available PCB real estate and mounting constraints.

Part Context

This device belongs to the 1N4916 through 1N4932A series of temperature-compensated Zener diodes manufactured by Microchip Technology. These components are engineered to provide stable reference voltages across wide temperature ranges. The series shares common construction techniques, including metallurgical bonding and double plug designs, to enhance long-term reliability and electrical consistency in demanding electronic environments.

Replacement Considerations

Consult official Microchip substitution guides for verified equivalents. Generic replacements may not match the specific temperature compensation curves or noise specifications.