1N3154-1/TR

Overview

The 1N3154-1/TR is a temperature-compensated Zener reference diode manufactured by Microchip Technology. It provides a nominal voltage of 8.4 V with a test current of 10 mA. The device features a low voltage temperature coefficient, achieving values as low as 0.001 %/°C for minimal voltage change over temperature variations. It is housed in a hermetically sealed glass DO-7 (DO-204AA) axial-leaded package and supports military qualifications including JAN, JANTX, and JANTXV.

Feature Summary

• Temperature compensated design for stable voltage reference performance
• Hermetically sealed glass DO-7 axial-leaded package construction
• Available in JAN, JANTX, and JANTXV military qualification grades

Applications

• Precision voltage reference circuits requiring low temperature drift
• Military and aerospace electronic systems
• High-reliability instrumentation and measurement equipment

Procurement Notes

Verify the specific suffix configuration to ensure compliance with required military qualification levels such as JAN, JANTX, or JANTXV. Confirm that the TR suffix aligns with the intended reel packaging requirements for automated assembly processes. Cross-reference the datasheet specifications against the exact application thermal and electrical constraints before finalizing procurement orders.

Selection Notes

Select this component when an 8.4 V reference with ultra-low temperature coefficients is required. Ensure the DO-7 through-hole package fits the board layout constraints. Verify that the 10 mA test current condition matches the biasing network design. Consider the available military grade options if environmental ruggedness is a primary design driver.

Part Context

This part belongs to the 1N3154 through 1N3157A series of Zero-TC Reference Diodes produced by Microchip Technology. These devices are engineered to provide stable voltage references across wide temperature ranges. The series includes various voltage options from 6.2 V to 200 V, with the 1N3154 specifically targeting the 8.4 V nominal range for precision applications.

Replacement Considerations

Compatible substitutes within the same family include 1N3154, 1N3154-1, and 1N3154A. For RoHS compliant versions, consider parts with the e3 suffix. Ensure any replacement maintains the DO-7 package and hermetic sealing characteristics required for the original application.