1N4584A/TR

Single Zener Diodes Overview

The Microchip Technology 1N4584A/TR is a temperature-compensated Zener reference diode with a nominal voltage of 6.4 V and a maximum temperature coefficient of 0.0005%/°C. It operates at a test current of 4.0 mA, features a maximum reverse current of 2 µA at 3 V, and has a dynamic impedance of 25 Ω. The device dissipates 500 mW, functions within -65°C to +175°C, and uses a DO-7 (DO-204AA) glass axial-leaded package.

Single Zener Diodes Feature Summary

• Temperature compensated design for minimal voltage change over broad operating ranges
• Internal metallurgical bonding for structural integrity
• Hermetically sealed glass case construction

Single Zener Diodes Applications

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

Single Zener Diodes Procurement Notes

Verify the TR suffix indicates tape-and-reel packaging per EIA-296 standards. Confirm the manufacturer origin as Microsemi Scottsdale Division or successor entity. Ensure the part number matches the specific JEDEC registration for the 1N4584A series characteristics.

Single Zener Diodes Selection Notes

Select this component when a 6.4 V reference with ultra-low temperature drift is required. The 4.0 mA test current setting distinguishes it from lower-current variants in the series. Verify that the DO-7 package dimensions align with the target PCB layout constraints.

Single Zener Diodes Part Context

This part belongs to the 1N4565 through 1N4584A-1 series of Zero-TC Reference Diodes. These devices provide selectable temperature coefficients ranging from 0.01%/°C down to 0.0005%/°C. The series supports various operating currents including 0.5 mA, 1.0 mA, 2.0 mA, and 4.0 mA.

Single Zener Diodes Replacement Considerations

Equivalent parts include other 6.4 V temperature-compensated Zener diodes with matching 0.0005%/°C coefficients and 4.0 mA test currents. Verify package compatibility with DO-7 (DO-204AA) specifications.