1N4932A/TR

Overview

The 1N4932A/TR is a temperature-compensated Zener diode manufactured by Microchip Technology. It features a nominal Zener voltage of 12.8 V with a tight tolerance of 5%. The device operates in the DO-7-2 axial through-hole package and supports a maximum power dissipation of 400 mW. Electrical characteristics include a maximum reverse leakage current of 15 uA, a Zener impedance of 25 Ohms at a test current of 7.5 mA, and a low voltage temperature coefficient of 0.005 %/°C. The component is rated for an operating temperature range from -65°C to +175°C.

Feature Summary

• Temperature compensation ensures stable voltage regulation across wide thermal variations
• High reliability construction suitable for demanding industrial environments
• Precision voltage tolerance maintains accuracy under varying load conditions

Applications

• Precision voltage reference circuits requiring thermal stability
• Over-voltage protection stages in sensitive electronic systems
• Voltage regulator designs utilizing temperature-compensated references

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm tape-and-reel packaging configuration. Ensure the requested quantity aligns with standard reel multiples defined in the datasheet. Confirm RoHS compliance status directly from the manufacturer's certification records prior to finalizing procurement orders.

Selection Notes

Select this component when precise voltage regulation is required over extreme temperature ranges. The low temperature coefficient makes it superior to standard Zener diodes for critical applications. Verify that the 400 mW power rating accommodates the expected thermal dissipation in the target circuit design.

Part Context

This part belongs to the 1N49xx series of temperature-compensated Zener diodes produced by Microchip Technology. These components are designed to provide highly stable reference voltages where standard Zener behavior would drift significantly due to thermal changes. The series is widely used in precision analog and mixed-signal applications.

Replacement Considerations

Consult official Microchip substitution guides for verified equivalents. Generic replacements may lack the specific temperature coefficient or voltage tolerance required for this application.