1N4571A

Single Zener Diodes Overview

The Microchip Technology 1N4571A is a temperature-compensated Zener diode designed for precision voltage regulation. It features a nominal Zener voltage of 6.4 V with a tight tolerance of ±0.5% at a test current of 1 mA. The device operates in the DO-7 (DO-204AH) through-hole package and dissipates up to 500 mW. Key electrical characteristics include a maximum reverse leakage current of 2 µA, a Zener impedance of 100 Ohms, and a low voltage temperature coefficient of 0.32 mV/°C. It supports an operating temperature range from -55°C to +100°C.

Single Zener Diodes Feature Summary

• Temperature compensated design ensures stable voltage reference performance across varying thermal conditions.
• High precision voltage regulation with tight manufacturing tolerances for critical circuit applications.
• Robust axial leaded construction suitable for reliable through-hole mounting.

Single Zener Diodes Applications

• Precision voltage reference circuits requiring high stability.
• Temperature compensated regulator designs.
• Calibration equipment and measurement instrumentation.

Single Zener Diodes Procurement Notes

Verify the specific suffix requirements when ordering, as standard versions may differ from tape-and-reel variants like the 1N4571A-1e3/TR. Confirm RoHS compliance status based on the exact part number suffix, as some configurations may not meet environmental directives. Ensure the DO-7 package dimensions align with the target PCB footprint before finalizing procurement specifications.

Single Zener Diodes Selection Notes

Select this component when a stable 6.4 V reference is required with minimal drift over temperature. The ±0.5% tolerance makes it suitable for applications demanding higher accuracy than standard Zener diodes. Consider the 100 Ohm impedance for noise sensitivity and the 500 mW power rating for thermal management in the chosen enclosure.

Single Zener Diodes Part Context

This component belongs to the 1N4571 series of temperature-compensated Zener diodes manufactured by Microchip Technology. These devices are engineered to provide superior voltage stability compared to conventional Zener diodes, making them ideal for sensitive analog circuits where voltage drift could compromise system performance.

Single Zener Diodes Replacement Considerations

Public confirmed substitute part numbers: 1N4571A-1, 1N4571A-1e3/TR.