1N4582A

Single Zener Diodes Overview

The Microchip Technology 1N4582A is a temperature-compensated Zener reference diode designed for precision voltage regulation. It features a nominal Zener voltage of 6.4 V with a tight tolerance of ±0.2%. The device operates at a test current of 4 mA and dissipates up to 500 mW. Key electrical characteristics include a maximum reverse leakage current of 2 µA, a Zener impedance of 25 Ohms, and a voltage temperature coefficient of 0.002 %/°C. It supports an extended operating temperature range from -65°C to +175°C.

Single Zener Diodes Feature Summary

• Temperature compensated design ensures stable voltage reference across wide thermal variations
• High precision voltage tolerance of ±0.2% for critical reference applications
• Extended operational reliability within military-grade temperature ranges

Single Zener Diodes Applications

• Precision voltage reference circuits in instrumentation
• Temperature compensation networks in analog systems
• Military and aerospace electronic equipment requiring high stability

Single Zener Diodes Procurement Notes

Verify the specific suffix (e.g., UR-1) against the datasheet to confirm package type and tolerance class. Confirm RoHS compliance status as standard versions may not meet environmental directives. Validate manufacturer lot traceability for regulated industries. Ensure ordering quantities match available packaging formats such as bulk or reel.

Single Zener Diodes Selection Notes

Select this component when a highly stable 6.4 V reference is required under extreme thermal conditions. Compare the ±0.2% tolerance against looser variants like the 1N4582A-1 if cost reduction is necessary. Consider the DO-35 through-hole package constraints versus surface-mount alternatives like CDLL4582A/TR for PCB layout optimization.

Single Zener Diodes Part Context

This part belongs to the 1N4582 series of temperature-compensated Zener diodes manufactured by Microchip Technology. These devices are engineered to provide a near-zero temperature coefficient around the 6.4 V breakdown region. The series includes various tolerance grades and packaging options to suit different industrial and defense specifications.

Single Zener Diodes Replacement Considerations

Public confirmed substitutes include JAN1N4582AUR-1 for equivalent performance in bulk packaging. For surface-mount requirements, consider CDLL4582A/TR which shares similar electrical parameters but utilizes the DO-213AA package.