1N4570A-1

Single Zener Diodes Overview

The Microchip Technology 1N4570A-1 is a temperature-compensated Zener reference diode featuring a nominal voltage of 6.4 V with a tolerance of ±5%. It operates in the DO-35 (DO-204AH) glass axial-leaded package and includes an internal metallurgical bond, indicated by the -1 suffix. The device dissipates up to 500 mW and maintains a low voltage temperature coefficient of 0.01 %/°C. It supports a wide operating temperature range from -65°C to +175°C and exhibits a maximum reverse leakage current of 2 µA at 3 V.

Single Zener Diodes Feature Summary

• Temperature compensated design for minimal voltage change across varying thermal conditions
• Internal metallurgical bond construction for enhanced structural integrity
• Hermetically sealed glass axial-leaded package ensuring environmental protection

Single Zener Diodes Applications

• Precision voltage reference circuits requiring high stability
• Military and aerospace electronic systems demanding ruggedized components
• High-reliability instrumentation and measurement equipment

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration to confirm the presence of the internal metallurgical bond and hermetic sealing characteristics required for your application. Ensure that the DO-35 package dimensions align with your PCB layout constraints. Confirm compliance with relevant military qualification standards if the component is intended for defense or aerospace use cases.

Single Zener Diodes Selection Notes

Select this component when a stable 6.4 V reference is needed with superior thermal performance compared to standard Zener diodes. The metallurgical bond option provides necessary durability for harsh environments. Consider the DO-35 form factor for through-hole mounting requirements where space permits axial leads.

Single Zener Diodes Part Context

This part belongs to the 1N4565 through 1N4584A series of Zero-Temperature Coefficient Reference Diodes. These devices are designed to provide precise voltage references with exceptionally low drift over temperature. The series offers various operating currents and voltages, with the 1N4570A-1 specifically providing the 6.4 V nominal value with bonded construction.

Single Zener Diodes Replacement Considerations

Equivalent parts include JAN1N4570A-1 and JANTX1N4570A-1 for qualified military versions. Surface mount alternatives are available in the DO-213AA package with the UR-1 suffix, such as JAN1N4570AUR-1.