1N4577A-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N4577A-1/TR is a temperature-compensated Zener reference diode housed in the DO-204AH (DO-35) axial through-hole package. It provides a nominal Zener voltage of 6.4 V with a test current of 2 mA and a maximum reverse leakage current of 2 µA at 3 V. The device features a low voltage temperature coefficient of 0.002 %/°C, ensuring high stability across its operating range of -65°C to +175°C. With a power dissipation rating of 500 mW and a Zener impedance of 50 Ohms, it is designed for precision voltage regulation applications.

Single Zener Diodes Feature Summary

• Temperature compensated design for stable voltage reference performance
• Low voltage temperature coefficient ensures minimal drift over wide thermal ranges
• High reliability construction suitable for demanding environments

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 configuration against official datasheets to ensure compatibility with required tolerance and packaging specifications. Confirm that the DO-204AH package dimensions align with the target PCB layout constraints. Cross-reference the manufacturer's latest revision history to validate component authenticity and compliance status before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a stable 6.4 V reference is required under varying thermal conditions. The low temperature coefficient makes it superior to standard Zener diodes for precision applications. Ensure the circuit design accommodates the 500 mW power dissipation limit and the specified 2 mA test current for optimal accuracy.

Single Zener Diodes Part Context

This part belongs to the 1N4565-1N4584 series of temperature-compensated Zener reference diodes manufactured by Microchip Technology. These devices are engineered to provide highly stable voltage references by combining complementary voltage coefficients. The series is widely used in instrumentation and measurement systems where long-term stability and low thermal drift are critical requirements.

Single Zener Diodes Replacement Considerations

Public confirmed substitute part numbers include 1N4577 and 1N4577A-1.