1N4578A-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N4578A-1/TR is a temperature-compensated Zener reference diode housed in a DO-35 (DO-204AH) through-hole package. It provides a nominal Zener voltage of 6.4 V with a tight tolerance of ±1%. The device operates at a test current of 2 mA and dissipates up to 500 mW. Key electrical characteristics include a maximum reverse leakage current of 2 µA, a Zener impedance of 50 Ohms, and a voltage temperature coefficient of 0.06 mV/°C. It functions within an operating temperature range of -55°C to +100°C.

Single Zener Diodes Feature Summary

• Temperature compensated design for minimal voltage change over broad temperature ranges
• Internal metallurgical bond construction for enhanced reliability
• High precision voltage regulation with tight tolerance

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 military or commercial standards. Confirm that the reel packaging matches production line requirements. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability before procurement.

Single Zener Diodes Selection Notes

Select this component when high stability and low temperature drift are critical for the application. Ensure the circuit design accommodates the specified 2 mA test current and 500 mW power dissipation limits. Verify that the DO-35 through-hole package fits the available PCB real estate and mounting constraints.

Single Zener Diodes Part Context

This component belongs to the 1N4565 through 1N4584A series of zero-temperature-coefficient reference diodes. These devices are engineered to provide stable voltage references by compensating for thermal variations inherent in standard Zener diodes. The series is widely utilized in applications requiring precise voltage regulation across varying environmental conditions.

Single Zener Diodes Replacement Considerations

Consult official substitution guides for equivalent parts such as JAN1N4578A-1 or JANTX1N4578A-1. Verify that any substitute maintains the same 6.4 V nominal voltage, ±1% tolerance, and DO-35 package form factor to ensure mechanical and electrical compatibility.