1N4574A-1E3/TR

Single Zener Diodes Overview

The 1N4574A-1E3/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 (0.03 mV/°C). It operates at a test current of 1.0 mA, features a maximum reverse current of 2 µA at 3 V, and has a dynamic impedance of 100 Ω. The device is housed in a DO-7 (DO-204AA) glass axial package with an internal metallurgical bond, rated for 500 mW power dissipation and an operating temperature range of -65°C to +175°C.

Single Zener Diodes Feature Summary

• Provides minimal voltage change over a broad operating temperature range
• Features an internal metallurgical bond for enhanced stability
• Offers flexible axial-leaded mounting terminals

Single Zener Diodes Applications

• Instrumentation requiring stable voltage references
• Circuit designs demanding low temperature drift
• Precision analog signal conditioning

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration against official datasheets to confirm package type and qualification level. Ensure the ordering part number matches the required military or commercial specifications. Confirm tape and reel packaging details align with automated assembly requirements before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a 6.4 V reference with ultra-low temperature drift is required. The 1.0 mA test current setting optimizes the balance between power consumption and stability. Verify that the DO-7 package dimensions fit the target PCB layout and that the operating environment stays within the specified thermal limits.

Single Zener Diodes Part Context

This device belongs to the 1N4565 through 1N4584A-1 series of Zero-TC Reference Diodes manufactured by Microsemi. These components are designed to provide highly stable voltage references with tight temperature coefficients. The series includes various operating currents and tolerance options to suit different precision application needs.

Single Zener Diodes Replacement Considerations

Equivalent parts include other 6.4 V temperature-compensated Zener diodes from manufacturers such as ON Semiconductor or Texas Instruments. Verify that replacement devices match the 0.0005%/°C temperature coefficient and 1.0 mA test current specifications to maintain circuit performance.