1N4576A/TR

Single Zener Diodes Overview

The Microchip Technology 1N4576A/TR is a temperature-compensated Zener reference diode with a nominal voltage of 6.4 V and a maximum temperature coefficient of 0.005%/°C. It operates at a test current of 2.0 mA, features a maximum reverse current of 2 µA at 3 V, and has a dynamic impedance of 50 Ohms. The device is housed in a DO-7 (DO-204AA) glass axial-leaded package, dissipates 500 mW, and supports an operating temperature range from -65°C to +175°C.

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
• ESD nonsensitive per MIL-STD-750 Method 1020

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 specific suffix requirements against the official datasheet before ordering. Confirm that the TR suffix correctly indicates tape and reel packaging as specified by EIA-296 standards. Ensure compatibility with existing through-hole mounting processes for the DO-7 package. Cross-reference part numbers with Microsemi or Microchip Technology documentation to validate military qualification prefixes if required.

Single Zener Diodes Selection Notes

Select this component when a 6.4 V reference with a 0.005%/°C temperature coefficient is required. The 2.0 mA test current setting balances power dissipation and stability. Consider the DO-7 package dimensions for board layout constraints. Evaluate the 50 Ohm dynamic impedance against circuit sensitivity requirements.

Single Zener Diodes Part Context

This device belongs to the 1N4565 thru 1N4584A-1 series of Zero-TC Reference Diodes. The series offers various temperature coefficients and test currents to suit different precision applications. The 1N4576A variant specifically targets applications needing tighter stability than standard Zeners while maintaining low power consumption.

Single Zener Diodes Replacement Considerations

Equivalent parts include 1N4576-1 and other variants within the 1N4565-1N4584A-1 series. Verify matching temperature coefficients and test currents when substituting.