1N4571A-1E3

Single Zener Diodes Overview

The Microchip Technology 1N4571A-1E3 is a temperature-compensated Zener reference diode with a nominal voltage of 6.4 V and a test current of 1 mA. It features a tight voltage tolerance of ±0.5% and a low voltage temperature coefficient of 0.32 mV/°C. The device operates in the -55°C to +100°C range, dissipates up to 500 mW, and has a maximum reverse leakage current of 2 µA. It utilizes a DO-204AH (DO-7) through-hole package.

Single Zener Diodes Feature Summary

• Temperature compensated design for stable reference voltage
• Tight initial voltage tolerance of ±0.5%
• Internal metallurgical bond construction

Single Zener Diodes Applications

• Precision voltage reference circuits
• Temperature compensated regulator designs
• High-stability analog signal conditioning

Single Zener Diodes Procurement Notes

Verify the specific suffix 'e3' confirms lead-free compliance and RoHS status as per manufacturer documentation. Confirm the '-1' suffix indicates internal metallurgical bonding if required for mechanical stability. Ensure the DO-204AH package dimensions match the target PCB layout constraints before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a 6.4 V reference with superior thermal stability is required compared to standard Zener diodes. The 1 mA test current suits low-power applications. Verify that the ±0.5% tolerance meets the system's accuracy requirements, noting that tighter tolerances may require binning or different part numbers within the series.

Single Zener Diodes Part Context

This part belongs to the 1N4565 through 1N4584A-1 series of zero-TC reference diodes manufactured by Microchip Technology. These devices are designed to provide minimal voltage change over temperature variations. The series offers various operating currents and voltages, with the 1N4571A specifically targeting the 6.4 V nominal output at 1 mA test conditions.

Single Zener Diodes Replacement Considerations

Public confirmed substitutes include the 1N4571A (non-e3 version) and other parts from the 1N4565-1N4584A-1 series with matching 6.4 V ratings. Verify compatibility with military specifications such as MIL-PRF-19500/452 if environmental ruggedness is required.