1N4570A/TR

Single Zener Diodes Overview

The Microchip Technology 1N4570A/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. It operates at a test current of 0.5 mA, featuring a maximum dynamic impedance of 100 Ohms and a reverse leakage current of 2 µA at 3 V. The device dissipates 500 mW and functions within an operating range of -55°C to +100°C. Packaged in a DO-7 (DO-204AA) axial leaded format, 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 over broad operating ranges
• Internal metallurgical bonding for structural integrity
• Hermetically sealed glass case construction
• ESD non-sensitive per MIL-STD-750 Method 1020

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 manufacturer origin, as the datasheet identifies Microsemi while the model prefix implies Microchip Technology. Confirm that the TR suffix correctly denotes tape and reel packaging per EIA-296 standards. Ensure the component meets the required environmental specifications for the intended operational temperature range.

Single Zener Diodes Selection Notes

Select this component when a 6.4 V reference with a 0.01%/°C temperature coefficient is required. The 0.5 mA test current suits low-power applications. Consider military variants like JANTX1N4570A-1 if enhanced reliability or radiation hardening prefixes are necessary for the specific deployment environment.

Single Zener Diodes Part Context

This part belongs to the 1N4565 through 1N4584A series of zero-TC reference diodes. These devices provide a selection of nominal 6.4 V voltages with varying temperature coefficients and operating currents. The series includes options for tighter voltage tolerances and military qualifications, serving as a versatile family for precision reference needs.

Single Zener Diodes Replacement Considerations

Equivalent parts include JAN1N4570A-1 and JANTX1N4570A-1 for military-grade requirements. Surface mount equivalents are available in the DO-213AA package by adding the UR-1 suffix, such as JANTX1N4570AUR-1.