105R-392H

Overview

The Delevan 105R-392H is a surface-mount RF inductor with an inductance of 3.9 µH and a tolerance of ±3%. It features a maximum DC resistance of 2.8 Ohms and a rated current of 185 mA. The component utilizes an unshielded wirewound construction on a ferrite core, housed in a nonstandard package measuring approximately 2.54 mm in length and width, with a height of 1.91 mm. It operates within a temperature range of -55°C to +125°C.

Feature Summary

• Unshielded wirewound design for RF applications
• Ferrite core construction
• Surface-mount termination style

Applications

• RF circuits
• PCB mount applications

Procurement Notes

Verify the specific suffix (e.g., H, FS) as it denotes critical electrical tolerances and physical attributes. Confirm RoHS compliance status directly from the manufacturer datasheet, as historical records indicate variations across the 105 series. Ensure the selected variant matches the required inductance tolerance and DC resistance specifications for the target circuit design.

Selection Notes

Select this component for RF designs requiring a 3.9 µH value with tight ±3% tolerance. Consider the unshielded nature when planning layout to minimize coupling. Verify that the 185 mA current rating meets the operational requirements. Compare against shielded alternatives if electromagnetic interference mitigation is necessary.

Part Context

This part belongs to the Delevan 105/R series of fixed RF inductors. These components are characterized by their small footprint and suitability for high-frequency signal processing. The series includes various tolerance options and shielding configurations to support diverse electronic design needs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.