1N4124UR-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N4124UR-1/TR is a surface-mount Zener diode housed in the DO-213AA package. It features a nominal Zener voltage of 43 V with a tolerance of ±5%. The device has a maximum power dissipation of 500 mW and an impedance of 250 Ohms. It utilizes metallurgically bonded glass construction for reliability.

Single Zener Diodes Feature Summary

• Metallurgically bonded glass surface mount construction
• Sharp Zener knee characteristics
• Round-end voltage regulator design

Single Zener Diodes Applications

• Voltage regulation circuits
• Reference voltage sources
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify the specific suffix /TR indicates tape and reel packaging versus bulk options. Confirm RoHS compliance status as some variants may be non-compliant. Ensure the DO-213AA footprint matches the target PCB layout. Check datasheet revisions for any parameter updates.

Single Zener Diodes Selection Notes

Select this component for applications requiring a 43 V reference in a compact SMD form factor. Consider the 500 mW power rating against thermal constraints. Evaluate the 250 Ohm impedance for noise sensitivity requirements. Compare against other voltages in the 1N412x series if different regulation levels are needed.

Single Zener Diodes Part Context

This part belongs to the Microchip 1N412x series of round-end voltage regulators. These devices are designed for general-purpose Zener regulation in surface-mount applications. The series offers various voltage options within a consistent DO-213AA package profile.

Single Zener Diodes Replacement Considerations

Direct substitutes include other 43 V Zener diodes in DO-213AA packages from compatible manufacturers. Verify power dissipation and impedance specifications match the original design requirements before substitution.