105R-221F

Overview

The Delevan 105R-221F is a surface-mount RF inductor with an inductance of 220 nH and a tolerance of ±1%. It features a maximum DC resistance of 210 mOhms and a rated current of 675 mA. The component utilizes an unshielded design within a compact 1008 (2520 metric) package, suitable for high-frequency applications.

Feature Summary

• Unshielded SMD construction for minimal parasitic effects
• Compact 1008 footprint for space-constrained PCBs
• High Q-factor performance at RF frequencies

Applications

• RF matching networks
• Impedance transformation circuits
• Filter components in wireless modules

Procurement Notes

Verify the specific suffix 'F' against official API Delevan documentation to confirm tolerance and current ratings. Ensure the source document explicitly lists the 105R-221F part number, as distributor data may conflate it with similar variants like the 105R-221GS or 105R-221K. Cross-reference the 210 mOhm DCR specification with the manufacturer's datasheet before procurement.

Selection Notes

Select this component for designs requiring a 220 nH inductance in a 1008 package with low DC resistance. The unshielded nature requires careful layout consideration to prevent magnetic coupling with nearby traces. Confirm that the 675 mA current rating meets the circuit's peak load requirements without saturation.

Part Context

This part belongs to the 105R series of fixed RF inductors from API Delevan. These components are designed for general-purpose RF applications, offering a balance between size, performance, and reliability. The series typically includes various tolerance options and package sizes to support diverse circuit architectures.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.