1N4618UR

Single Zener Diodes Overview

The Microchip Technology 1N4618UR is a single Zener diode designed for surface mount applications. It features a Zener voltage of 2.7 V with a tolerance of ±5%. The device has a power dissipation rating of 500 mW and utilizes the DO-213AA (SMB) package. Key electrical characteristics include a maximum reverse leakage current of 1 µA and a Zener impedance of 1500 Ohms. It operates within a temperature range of -65°C to +150°C.

Single Zener Diodes Feature Summary

• Surface mount construction in a compact DO-213AA package
• Precision voltage regulation at 2.7 V with tight tolerance
• High thermal stability suitable for demanding environments

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• Clamping applications

Single Zener Diodes Procurement Notes

Verify the specific manufacturer designation, as Microchip acquired assets from Central Semiconductor and Microsemi. Confirm the package type matches your PCB footprint requirements. Ensure the datasheet corresponds to the exact suffix UR to validate the 500 mW rating and surface mount configuration rather than through-hole variants.

Single Zener Diodes Selection Notes

Select this component when a low-profile surface mount Zener diode is required for 2.7 V regulation. Compare the 500 mW power rating against circuit dissipation needs. Verify that the DO-213AA footprint aligns with existing board designs. Consider thermal management if operating near maximum junction temperatures.

Single Zener Diodes Part Context

This part belongs to the family of glass passivated surface mount Zener diodes. It serves as a compact alternative to axial leaded versions like the 1N4618. The UR suffix typically denotes the specific surface mount packaging and manufacturing line associated with Microchip's acquisition history.

Single Zener Diodes Replacement Considerations

Direct substitutes include other 2.7 V SMD Zener diodes in DO-213AA packages from manufacturers such as Central Semiconductor or Vishay. Verify pinout compatibility and ensure equivalent power ratings and voltage tolerances before substitution.