1N4570

Single Zener Diodes Overview

The Microchip Technology 1N4570 is a temperature-compensated Zener reference diode with a nominal voltage of 6.4 V. It operates at a test current (IZT) of 0.5 mA and exhibits a maximum temperature coefficient of 0.01%/°C (0.64 mV/°C). The device features a maximum dynamic impedance of 100 ohms and a maximum reverse current of 2.0 µA at 3 V. It is housed in a hermetically sealed glass DO-7 (DO-204AA) package with tin-lead plated terminals, supporting an operating temperature range of -65°C to +175°C.

Single Zener Diodes Feature Summary

• Provides stable voltage reference with minimal change over broad temperature ranges
• Internal metallurgical bonding for structural integrity
• Non-sensitive to electrostatic discharge per MIL-STD-750 Method 1020
• Flexible axial-leaded mounting terminals for various circuit designs

Single Zener Diodes Applications

• Instrumentation requiring precise voltage references
• Circuit designs demanding low voltage drift over temperature
• Military qualification applications via JAN/JANTX prefixes

Single Zener Diodes Procurement Notes

Verify the specific suffix requirements for military qualifications (JAN, JANTX, JANTXV) or tape-and-reel packaging (TR) against the official datasheet. Confirm that the ordering part number matches the required tolerance and temperature coefficient specifications. Ensure compatibility with the DO-7 package dimensions and terminal plating standards specified by Microsemi Scottsdale Division.

Single Zener Diodes Selection Notes

Select the 1N4570 when a 6.4 V reference with a 0.01%/°C temperature coefficient is required at a 0.5 mA operating current. Consider tighter tolerance suffixes if voltage accuracy beyond the standard specification is needed. Evaluate the DO-7 package constraints and ensure the application supports the axial-leaded form factor and hermetically sealed glass construction.

Single Zener Diodes Part Context

The 1N4570 belongs to the 1N4565 through 1N4584A-1 series of zero-TC reference diodes manufactured by Microsemi's Scottsdale Division. This series offers nominal 6.4 V outputs with varying temperature coefficients and test currents. The component is JEDEC registered and available in military grades, providing a robust solution for precision analog circuits requiring stable reference voltages.

Single Zener Diodes Replacement Considerations

Direct substitutes include other members of the 1N4565-1N4584A series with matching electrical parameters. Military equivalents are available with JAN, JANTX, or JANTXV prefixes. Surface mount alternatives exist in the DO-213AA package with the UR-1 suffix.