103R-392K

Overview

The Delevan 103R-392K is an unshielded surface-mount RF inductor with a nominal inductance of 3.9 µH and a tolerance of ±10%. It features a maximum DC resistance of 1.55 Ω and a rated current of 250 mA. The component utilizes a non-standard, two-lead package design with dimensions of 2.54 mm in length and width, and 1.91 mm in height. It operates within a temperature range of -55°C to 125°C and is supplied in reel packaging.

Feature Summary

• Unshielded construction for specific RF circuit integration
• Non-standard two-lead terminal configuration
• Ferrite core material for stable inductance

Applications

• RF signal processing circuits
• Surface-mount PCB assembly
• General-purpose RF filtering applications

Procurement Notes

Verify the exact physical footprint against the target PCB land pattern, as this component uses a non-standard two-lead configuration rather than typical SMD pads. Confirm that the 250 mA current rating meets the operational requirements of the specific circuit application before finalizing procurement decisions.

Selection Notes

Select this component when an unshielded inductor with a 3.9 µH value is required for space-constrained designs utilizing a non-standard lead format. Ensure the 1.55 Ω DC resistance aligns with the circuit's power loss constraints and verify compatibility with the -55°C to 125°C operating temperature range.

Part Context

This part belongs to the Delevan 103/R series of fixed RF inductors. The series offers various inductance values in a compact form factor designed for surface-mount technology. The 103R-392K specifically provides a 3.9 µH value within this lineup, catering to applications requiring precise RF characteristics without magnetic shielding.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Cross-referencing requires matching the 3.9 µH inductance, 250 mA current rating, 1.55 Ω DCR, and the specific non-standard two-lead physical dimensions.