1N4924A/TR

Overview

The Microchip Technology 1N4924A/TR is a temperature-compensated Zener diode designed for precision voltage regulation applications. It operates in the DO-7-2 through-hole package with a nominal Zener voltage of 12.8 V and a tolerance of 5%. The device dissipates up to 400 mW and maintains stability across an extended temperature range from -65°C to +175°C. Key electrical characteristics include a maximum reverse leakage current of 15 µA, a Zener impedance of 35 Ohms, and a test current of 5 mA. The component features a low voltage temperature coefficient of 0.003 %/°C, ensuring reliable performance in demanding environments.

Feature Summary

• Temperature compensated design ensures stable voltage regulation across wide thermal variations
• High reliability construction suitable for harsh operating conditions up to 175°C
• Precision voltage tolerance maintained at 5% for accurate circuit reference

Applications

• Precision voltage reference circuits requiring thermal stability
• Industrial control systems operating in extreme temperatures
• Military and aerospace electronic equipment
• Test and measurement instrumentation

Procurement Notes

Verify the specific manufacturer part number against official Microchip documentation to confirm availability and specifications. Ensure that the ordering suffix matches the required reel packaging configuration. Cross-reference technical parameters such as Zener voltage and power dissipation with the latest datasheet before finalizing procurement decisions.

Selection Notes

Select this component when precise voltage regulation under varying thermal conditions is critical. The temperature compensation feature distinguishes it from standard Zener diodes, making it ideal for high-reliability applications. Verify that the through-hole mounting style and power dissipation rating align with the target circuit board layout and thermal management requirements.

Part Context

This component belongs to Microchip's legacy discrete diode portfolio, specifically within the temperature-compensated Zener series. These devices are engineered to provide stable reference voltages where standard Zener diodes would exhibit significant drift due to temperature changes. The product line supports long-term manufacturing needs in sectors requiring robust and predictable semiconductor performance.

Replacement Considerations

Consult official Microchip documentation for verified equivalent part numbers or direct replacements. Do not assume cross-compatibility with generic industry equivalents without validating electrical parameters and physical dimensions against the original specification sheet.