1N4584/TR

Single Zener Diodes Overview

The Microchip Technology 1N4584/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 Ohms. The device is housed in a DO-7 (DO-204AA) glass axial-leaded package, supports an operating temperature range from -65°C to +175°C, and dissipates up to 500 mW.

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 circuits 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 specific ordering suffix required for tape and reel packaging, as indicated by the TR designation. Confirm that the selected part number aligns with the intended military or commercial qualification levels if applicable. Ensure the procurement documentation matches the manufacturer's official datasheet specifications for the 1N4584 series to guarantee correct electrical characteristics and package type.

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. Consider the DO-7 package dimensions for board layout. Verify compatibility with existing circuit biasing requirements, as the specified test current must be maintained for optimal stability.

Single Zener Diodes Part Context

This device belongs to the 1N4565 through 1N4584A series of zero-TC reference diodes manufactured by Microsemi (now Microchip Technology). These components are designed to provide precise voltage references with tight tolerance options. The series includes various temperature coefficients and test currents to suit different precision application needs.

Single Zener Diodes Replacement Considerations

Equivalent parts within the 1N4565-1N4584A series may be considered if they match the 6.4 V nominal voltage, 4.0 mA test current, and 0.0005%/°C temperature coefficient. Verify package compatibility and electrical parameters before substitution.