1N4122UR

Single Zener Diodes Overview

The Microchip Technology 1N4122UR is a silicon Zener diode with a nominal voltage of 36V and a tolerance of 5%. It features a maximum power dissipation of 0.5W and a dynamic impedance of 200 Ω. The device is housed in a hermetically sealed glass MELF-2 (DO-213AA) package, designed for surface mount applications. It operates within a temperature range up to 175°C junction temperature.

Single Zener Diodes Feature Summary

• Hermetically sealed glass construction for environmental protection
• Internal metallurgical bond for enhanced reliability
• Surface mount MELF-2 package design

Single Zener Diodes Applications

• Voltage regulation circuits
• Overvoltage protection systems
• Reference voltage generation

Single Zener Diodes Procurement Notes

Verify the specific suffix UR against official Microchip documentation to confirm the exact package type and qualification level. Ensure compliance with RoHS status requirements as indicated in the datasheet. Confirm that the DO-213AA package matches the intended PCB footprint and assembly process before procurement.

Single Zener Diodes Selection Notes

Select this component when a 36V Zener voltage is required in a surface mount configuration. The 0.5W power rating suits moderate current applications. Consider the 200 Ω dynamic impedance for noise-sensitive designs. Verify thermal management capabilities for operation near the 175°C limit.

Single Zener Diodes Part Context

This part belongs to the 1N4122 series of Zener diodes manufactured by Microchip Technology. It shares characteristics with other devices in the 1N4099 through 1N4135 series, offering similar power ratings and package options. The UR suffix typically denotes a specific surface mount variant within this family.

Single Zener Diodes Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Microchip technical support or authorized distributors for verified equivalents.