1N4623UR

Overview

The Microchip Technology 1N4623UR is a single Zener diode with a nominal reference voltage of 4.3 V and a maximum voltage tolerance of ±5%. It features a power rating of 500 mW and an impedance of 1600 Ohms. The device utilizes silicon technology in a surface mount DO-213AA package (SOD-80). It is available in lead-free configurations and supports tape-and-reel packaging for automated assembly.

Feature Summary

• Surface mount equivalent to JEDEC registered axial-leaded series
• Internal metallurgical bond option available with specific suffixes
• RoHS compliant devices available by adding designated suffix

Applications

• Voltage regulation in surface mount circuits
• Reference voltage generation
• Low noise signal conditioning

Procurement Notes

Verify the exact ordering suffix to confirm package type, bonding method, and compliance status. Ensure the selected variant matches the required thermal and electrical specifications for the target application environment.

Selection Notes

Select this component for applications requiring a 4.3 V Zener reference in a compact surface mount form factor. Consider the DO-213AA package constraints and verify thermal dissipation requirements against the 500 mW rating during design integration.

Part Context

This part belongs to the 1N4614UR-1 through 1N4627UR-1 series of 0.5 W glass surface mount Zener voltage regulators. These components provide a selection from 1.8 to 100 volts in standard 5% tolerances within the DO-213AA package format.

Replacement Considerations

Equivalent axial-leaded parts include the 1N4623. Surface mount alternatives may include variants from other manufacturers offering similar 4.3 V Zener characteristics in SOD-80 or DO-213AA packages.