103R-392FS

Overview

The Delevan 103R-392FS is a fixed surface-mount RF inductor with an inductance of 3.9 µH and a tolerance of 1%. It features a maximum DC resistance of 1.55 Ohms and a rated current of 250 mA. The component utilizes an unshielded wirewound construction on a non-standard footprint, suitable for PCB mounting.

Feature Summary

• Unshielded wirewound design for RF applications
• High precision 1% inductance tolerance
• Compact surface-mount form factor

Applications

• RF circuit filtering
• Impedance matching networks
• General purpose SMT RF components

Procurement Notes

Verify the specific package dimensions against your PCB footprint, as this part uses a non-standard size distinct from common metric series. Confirm RoHS compliance status through official manufacturer documentation before integration. Ensure the 250 mA current rating meets your circuit's operational requirements to prevent saturation or overheating during final validation.

Selection Notes

Select this component when a precise 3.9 µH value is required in a compact, unshielded configuration. Compare its physical dimensions against standard packages like 0805 or 1008 to ensure mechanical compatibility. Consider the higher DC resistance compared to shielded alternatives when evaluating power loss and thermal performance in your specific application environment.

Part Context

This part belongs to the Delevan 103/R series of RF inductors. It shares the 3.9 µH nominal value with other variants such as the 103R-390KS, but differs significantly in tolerance, current rating, and physical packaging. The 103R-392FS is distinguished by its tighter 1% tolerance and lower current handling capacity relative to broader series offerings.

Replacement Considerations

The 103R-392F is listed as an alias or related variant within the same product family. Verify if the 'F' suffix denotes a specific tape-and-reel packaging format that matches your assembly line requirements. Cross-reference electrical parameters strictly, as variations may exist in DC resistance or current ratings between closely numbered parts.