1N3156

Overview

The Microchip Technology 1N3156 is a temperature-compensated Zener reference diode featuring an 8.4 V nominal breakdown voltage. It operates with a test current of 10 mA and dissipates up to 0.5 W. The device utilizes a DO-7 glass axial-leaded package. It offers low temperature coefficients, typically around 0.005 %/°C, ensuring minimal voltage drift across the operating range. The component supports a wide thermal environment from -65 °C to +175 °C.

Feature Summary

• Temperature compensated design for stable voltage reference
• Hermetically sealed glass axial-leaded construction
• Low temperature coefficient for precision applications

Applications

• Precision voltage reference circuits
• Temperature compensation networks
• High-reliability analog signal conditioning

Procurement Notes

Verify the specific suffix (e.g., A, -1, e3) against the datasheet to confirm tolerance and compliance status. Confirm RoHS status as standard versions may not be compliant. Validate military qualifications if required for the application. Ensure the ordering suffix matches the exact performance grade needed.

Selection Notes

Select based on required voltage tolerance and temperature coefficient specifications. Consider the DO-7 package constraints for PCB layout. Evaluate the 0.5 W power dissipation limit against circuit load conditions. Verify compatibility with the 10 mA test current requirement for accurate regulation.

Part Context

Part of the 1N3154 through 1N3157A series of Zero-TC Reference Diodes. Designed for applications requiring stable voltage references over wide temperature ranges. Available in various military and commercial grades including JAN, JANTX, and JANTXV qualifications.

Replacement Considerations

Check equivalent part numbers within the 1N315x series for compatible voltage and tolerance. Verify pinout and package dimensions match the DO-7 form factor. Ensure replacement devices meet the same temperature coefficient requirements.