1N4571

Single Zener Diodes Overview

The Microchip Technology 1N4571 is a 6.4 V temperature compensated Zener reference diode housed in a DO-7 (DO-204AA) glass axial-leaded package. It operates at a test current of 1.0 mA with a maximum reverse leakage current of 2 µA at 3 V and a dynamic impedance of 100 Ohms. The device provides a nominal voltage tolerance of ±5% and a temperature coefficient range of ±0.005%/°C (±0.32 mV/°C). It supports an operating temperature range from -55°C to +100°C, dissipates up to 500 mW, and features internal metallurgical bonding for stability.

Single Zener Diodes Feature Summary

• Provides minimal voltage change over a broad operating temperature range
• Internal metallurgical bonded construction for enhanced stability
• Flexible axial-leaded mounting terminals for through-hole integration

Single Zener Diodes Applications

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

Single Zener Diodes Procurement Notes

Verify the specific suffix requirements against the datasheet before ordering. Standard JEDEC registration applies to the base part number. Military qualifications require specific prefixes such as JAN or JANTX combined with the -1 suffix. Confirm that the DO-7 package aligns with your PCB footprint and lead compatibility specifications.

Single Zener Diodes Selection Notes

Select this component when a 6.4 V reference with a 1.0 mA operating current is required. The ±0.005%/°C temperature coefficient suits applications needing moderate thermal stability. Ensure the circuit design maintains power dissipation below 30 mW for optimal voltage-temperature performance. Verify that the ±5% initial tolerance meets the system's accuracy constraints.

Single Zener Diodes Part Context

This device belongs to the 1N4565 through 1N4584A series of zero-TC reference diodes. The series offers various operating currents ranging from 0.5 mA to 4.0 mA while maintaining a nominal 6.4 V output. These diodes are designed for high reliability and are available in military qualifications including JAN, JANTX, and JANTXV variants.

Single Zener Diodes Replacement Considerations

Equivalent parts within the same series include 1N4570 and 1N4572, which share the 6.4 V nominal voltage but differ in operating current and temperature coefficient specifications.