105-392KS

Overview

The Delevan 105-392KS 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 2.8 Ohms and a rated current of 185 mA. The component exhibits a self-resonant frequency of 57 MHz when tested at 7.9 MHz. It utilizes a nonstandard two-lead SMD package measuring 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height.

Feature Summary

• Unshielded construction for minimal magnetic interference
• Designed specifically for radio frequency applications
• Surface-mount technology for automated PCB assembly

Applications

• RF circuit filtering
• Impedance matching networks
• Oscillator tank circuits

Procurement Notes

Verify the specific suffix designation against official API Delevan documentation to confirm exact electrical tolerances and packaging configurations. Confirm RoHS compliance status as historical data indicates potential non-compliance for this series. Ensure the selected variant matches the required lead finish and thermal characteristics for the intended manufacturing process.

Selection Notes

Select this component for high-frequency designs requiring stable inductance values within the RF spectrum. Evaluate the 2.8 Ohm DC resistance against power loss constraints in the target circuit. Consider the physical dimensions of the 1008-style footprint during layout planning to ensure adequate clearance for adjacent components.

Part Context

This part belongs to the Delevan Series 105/R family of surface-mount RF inductors. These components are engineered for stability in demanding radio frequency environments. The series offers various inductance values optimized for compact electronic designs requiring precise signal processing capabilities.

Replacement Considerations

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