1N4748AUR

Overview

The Microchip Technology 1N4748AUR is a single Zener diode with a nominal voltage of 20 V and a power dissipation rating of 1 W. It features a 5% voltage tolerance and operates within a temperature range of -65 °C to +175 °C. The device utilizes the DO-213AB (MELF) surface-mount package and exhibits a maximum reverse leakage current of 100 nA.

Feature Summary

• Provides stable voltage regulation in a compact, hermetically sealed glass MELF package.
• Designed for high-reliability applications requiring extended thermal stability.

Applications

• Voltage reference circuits
• Overvoltage protection systems
• Precision voltage regulation

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package type and compliance status. Confirm RoHS designation and lead-free status directly with the manufacturer or authorized distributors prior to procurement. Ensure the ordering part number matches the required JEDEC package code for proper integration.

Selection Notes

Select this component when a 20 V regulation point is required in a surface-mount form factor. Consider the 1 W power rating and wide operating temperature range for demanding environments. Verify that the DO-213AB footprint aligns with the target PCB design constraints.

Part Context

This component belongs to the 1N47xx series of Zener diodes manufactured by Microchip Technology. The series offers various voltage options in both through-hole and surface-mount packages, catering to diverse electronic design requirements for voltage regulation and protection.

Replacement Considerations

Consult official substitution lists for equivalent parts from Microchip or other manufacturers. Verify matching electrical parameters such as voltage, power, and package dimensions before replacing.