1N4580/TR

Single Zener Diodes Overview

The Microchip Technology 1N4580/TR is a temperature-compensated Zener reference diode featuring a nominal voltage of 6.4 V and a maximum temperature coefficient of 0.01%/°C. It operates at a test current of 4.0 mA with a dynamic impedance of 25 Ohms and a maximum reverse current of 2 µA. The device utilizes 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. The TR suffix indicates tape-and-reel packaging compliant with EIA-296 standards.

Single Zener Diodes Feature Summary

• Temperature compensated design for minimal voltage change across broad operating ranges
• Internal metallurgical bond construction within hermetically sealed glass case
• Flexible axial-leaded mounting terminals compatible with standard through-hole processes

Single Zener Diodes Applications

• Instrumentation circuits requiring stable voltage references
• Precision circuit designs demanding low temperature drift
• Military qualification applications meeting MIL-PRF-19500/452 standards

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm package type and testing parameters. Confirm that the TR suffix aligns with required automated assembly equipment specifications. Ensure environmental compliance requirements match the component's manufacturing origin and material composition data provided in official datasheets.

Single Zener Diodes Selection Notes

Select this component when a 6.4 V reference with a 0.01%/°C temperature coefficient is required. Verify that the 4.0 mA test current matches the biasing conditions of the target application circuit. Consider the DO-7 package dimensions for PCB layout constraints and ensure thermal dissipation limits are respected during operation.

Single Zener Diodes Part Context

This part belongs to the 1N4565 through 1N4584 series of Zero-TC Reference Diodes manufactured by Microsemi, now part of Microchip Technology. The series provides various temperature coefficients and operating currents while maintaining a consistent 6.4 V nominal voltage. These devices are widely used in high-reliability applications where voltage stability over temperature is critical.

Single Zener Diodes Replacement Considerations

Equivalent parts include the 1N4580A-1 and military variants such as JANTX1N4580A-1. Surface mount equivalents are available in the DO-213AA package with UR-1 suffixes. Verify pinout compatibility and electrical characteristics before substitution.