1N3154-1

Overview

The Microchip Technology 1N3154-1 is an 8.4 V temperature compensated Zener reference diode housed in a hermetically sealed glass DO-7 (DO-204AA) package. It operates at a test current of 10 mA with a maximum reverse current of 10 μA at 5.5 V. The device provides a nominal voltage range of 8.00 V to 8.80 V and features a maximum temperature coefficient of 0.01 %/°C over the -55°C to +100°C effective temperature range. It supports a DC power dissipation of 500 mW at 25°C and withstands solder temperatures up to 260°C for 10 seconds.

Feature Summary

• Provides minimal voltage changes over a broad temperature range
• Features internal metallurgical bonds for reliability
• Offers flexible axial-lead mounting terminals
• Remains nonsensitive to electrostatic discharge

Applications

• Instrumentation requiring stable voltage references
• Circuit designs demanding low voltage drift with temperature
• Military qualification applications via JAN/JANTX prefixes

Procurement Notes

Verify the specific suffix requirements when ordering, as designations such as -1 indicate military qualification levels under MIL-PRF-19500/158 standards. Confirm RoHS compliance needs by checking for the e3 suffix, which is not applicable to military variants. Ensure the operating current remains near 10.0 mA for optimal voltage-temperature stability during implementation.

Selection Notes

Select this component when a precise 8.4 V reference with tight temperature stability is required. The -1 suffix denotes availability in military grades up to JANTXV levels. Consider the DO-7 package for through-hole mounting and verify that the 0.01 %/°C temperature coefficient meets the thermal performance constraints of the target application environment.

Part Context

This part belongs to the 1N3154 thru 1N3157A series of Zero-TC Reference Diodes manufactured by Microsemi's Scottsdale Division. The series offers various temperature coefficients ranging from 0.01%/°C down to 0.001%/°C. These devices are JEDEC registered and serve as standard reference solutions for precision analog circuits requiring high stability.

Replacement Considerations

Consult factory documentation for Radiation Hardened equivalents designated with the RH prefix, such as RH3156 or RH3157. Standard commercial replacements may lack the hermetic sealing and military qualification levels inherent to the -1 suffix variant.

FAQ

How does operating current affect the temperature coefficient?

Operating at currents other than 10 mA alters the temperature coefficient. Graphs in the datasheet allow estimation of these changes; for example, operation at 7.5 mA typically shifts the coefficient limits compared to the 10 mA specification.

What is the polarity configuration for this reference diode?

The diode must be operated with the banded end positive with respect to the opposite end to function correctly as a voltage reference.