1N4575/TR

Single Zener Diodes Overview

The Microchip Technology 1N4575/TR is a temperature-compensated Zener reference diode with a nominal voltage of 6.4 V and a maximum temperature coefficient of 0.01 %/°C (0.64 mV/°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 bond construction within hermetically sealed glass case
• Flexible axial-leaded mounting terminals for through-hole integration

Single Zener Diodes Applications

• Instrumentation circuits requiring stable voltage references
• Precision measurement systems demanding low temperature drift
• Military and aerospace electronic designs

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration against official datasheets to confirm package type and qualification level. Confirm that the TR suffix indicates tape and reel packaging per EIA-296 standards. Ensure compatibility with MIL-STD-750 soldering and testing requirements if military specifications are required for the application.

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 2.0 mA test current aligns with the circuit bias conditions. Consider the DO-7 package dimensions and lead spacing for PCB layout constraints. Evaluate the 50 Ohm dynamic impedance against signal integrity requirements.

Single Zener Diodes Part Context

This part belongs to the 1N4565 through 1N4584A-1 series of Zero-TC Reference Diodes manufactured by Microsemi (now Microchip Technology). The series provides various temperature coefficients and operating currents for 6.4 V applications. The 1N4575 variant specifically targets the 2.0 mA operating current category with a 0.01 %/°C coefficient.

Single Zener Diodes Replacement Considerations

Equivalent parts include 1N4575A and JAN1N4575 variants. Military qualified versions such as JANTX1N4575 or JANS1N4575 offer enhanced reliability. Surface mount equivalents are available in the DO-213AA package with the UR-1 suffix.