1N3154UR-1/TR

Overview

The Microchip Technology 1N3154UR-1/TR is a temperature-compensated Zener reference diode featuring an 8.00 V to 8.80 V nominal voltage at a test current of 10 mA. It exhibits a maximum temperature coefficient of 0.01 %/°C over a -55°C to +100°C range, with a maximum reverse leakage current of 10 µA at 5.5 V and impedance of 15 Ω. The device operates within a -65°C to +175°C temperature envelope and dissipates up to 500 mW. It utilizes a hermetically sealed glass DO-7 (DO-204AA) axial-lead package and is supplied in tape and reel format.

Feature Summary

• Provides minimal voltage change across broad temperature ranges for stable reference applications
• Features internal metallurgical bonds and flexible axial-lead mounting terminals
• Non-sensitive to electrostatic discharge per MIL-STD-750 Method 1020

Applications

• Instrumentation requiring stable voltage references
• Circuit designs demanding low temperature coefficient performance
• Military qualification systems utilizing JAN or JANTX prefixes

Procurement Notes

Verify the specific suffix requirements against official documentation before ordering. Confirm that the TR suffix aligns with the required tape and reel packaging specifications. Ensure compatibility with existing manufacturing processes regarding the DO-7 package dimensions and soldering temperatures. Cross-reference part numbers with the manufacturer's latest datasheet to confirm availability and compliance status.

Selection Notes

Select this component when a precise 8.4 V nominal reference with tight temperature stability is required. Consider the 0.01 %/°C coefficient limit for standard commercial environments. Evaluate the operating current constraints to maintain optimal voltage-temperature stability below 90 mW dissipation. Verify package compatibility with the target PCB layout and assembly equipment capabilities.

Part Context

This device belongs to the 1N3154 through 1N3157 series of Zero-TC Reference Diodes manufactured by Microchip Technology. The series offers various tolerance options and military qualifications. The 1N3154 variant specifically provides the baseline temperature compensation characteristics within this family, serving as a foundational reference element for precision analog circuits.

Replacement Considerations

Consult the manufacturer for radiation-hardened equivalents using the RH prefix. Verify if alternative JEDEC registered types meet the specific impedance and leakage requirements.