108R-273KS

Overview

The Delevan 108R-273KS is a surface-mount RF inductor with an inductance of 27 uH and a tolerance of 10%. It features a maximum DC resistance of 8 Ohms and a rated current of 55 mA. The component utilizes an unshielded wirewound construction on a ferrite core, housed in a nonstandard SMD package designed for PCB mounting.

Feature Summary

• Unshielded wirewound design suitable for RF applications
• Ferrite core construction for stable inductance
• Surface-mount termination for automated assembly

Applications

• RF circuit filtering
• Signal processing networks
• Impedance matching stages

Procurement Notes

Verify the specific manufacturer designation, as sources list both API Delevan and Delevan. Confirm lifecycle status, as some records indicate active availability while others suggest obsolescence. Ensure the unshielded variant meets EMI requirements for the target application before finalizing procurement.

Selection Notes

Select this component for low-current RF environments requiring 27 uH inductance. The 8 Ohm DC resistance limits current handling to 55 mA. Consider thermal management due to resistive losses. Verify that the unshielded topology does not interfere with nearby sensitive traces or components.

Part Context

This part belongs to the fixed inductor category within passive components. It serves as a specialized RF choke or filter element. The series typically offers various inductance values for different frequency bands, supporting general electronic signal conditioning tasks.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Cross-reference with other 27 uH unshielded SMD RF inductors only after verifying electrical compatibility and mechanical footprint constraints.