1N4618UR-1/TR

Single Zener Diodes Overview

The 1N4618UR-1/TR is a surface-mount Zener diode manufactured by Microchip Technology. It features a nominal Zener voltage of 2.7 V with a tolerance of ±5%. The device is designed for voltage regulation applications and operates within a maximum power dissipation of 500 mW. It utilizes the DO-213AA (SMB) package, which is a round-end glass MELF-style case suitable for automated assembly. The component is supplied in tape and reel packaging to facilitate high-volume surface mount technology processes.

Single Zener Diodes Feature Summary

• Surface mount construction in a DO-213AA package
• Hermetically sealed glass MELF case design
• Voltage regulation capability at 2.7 V nominal
• Tape and reel delivery format

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• Clamping applications

Single Zener Diodes Procurement Notes

Verify the specific suffix UR-1/TR against official Microchip documentation to confirm the exact variant specifications. Ensure compatibility with existing PCB footprints for the DO-213AA package. Confirm that the 500 mW power rating meets the thermal requirements of the intended application environment. Check for any RoHS or environmental compliance declarations required for the project.

Single Zener Diodes Selection Notes

Select this component when a surface-mount Zener diode with a 2.7 V breakdown voltage is required. The DO-213AA package offers a compact form factor compared to axial leads. Consider the 500 mW power dissipation limit during thermal analysis. Verify that the ±5% tolerance aligns with the circuit's precision requirements. Ensure the manufacturer source is authorized to guarantee part authenticity.

Single Zener Diodes Part Context

This part belongs to the Microchip Technology single Zener diode family. It is a surface-mount version of the traditional 1N4618 series, adapted for modern PCB assembly. The UR-1 designation typically indicates a specific manufacturing lot or revision within the Microchip portfolio. The TR suffix confirms the tape and reel packaging configuration.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers offering DO-213AA packaged Zener diodes rated at 2.7 V and 500 mW. Verify pinout compatibility and physical dimensions before substitution. Ensure electrical parameters such as impedance and test current match the original design specifications.