105-391J

Overview

The Delevan 105-391J is a surface-mount RF inductor with an inductance of 390 nH and a tolerance of 5%. It features an unshielded design suitable for compact PCB layouts. The component supports a maximum DC current of 585 mA and has a maximum DC resistance of 280 mOhms. Key electrical characteristics include a minimum Q factor of 35 and a self-resonant frequency of 185 MHz. The physical dimensions are 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height.

Feature Summary

• Unshielded construction for minimal footprint requirements
• Surface-mount technology for automated PCB assembly
• Stable inductance performance in radio frequency circuits

Applications

• Radio frequency signal processing
• Compact electronic circuit filtering
• RF impedance matching networks

Procurement Notes

Verify component status as the 105-391J is listed as end-of-life or discontinued by the manufacturer. Confirm availability through authorized distributors or surplus suppliers. Ensure compatibility with existing designs before sourcing, as replacement components may require layout adjustments. Check RoHS compliance documentation if required for specific regulatory standards.

Selection Notes

Select this component for applications requiring a 390 nH inductance in a small SMD package. Consider the unshielded nature when designing near sensitive components to prevent interference. Evaluate the 585 mA current rating against circuit demands. Compare with shielded alternatives like the 4379 series if magnetic field containment is necessary.

Part Context

This part belongs to the Delevan Series 105/R family of RF inductors. These components are designed for general-purpose radio frequency applications. The series offers various inductance values within a standardized footprint. The 105-391J specifically provides a balance of size and electrical performance for mid-range RF frequencies.

Replacement Considerations

Public confirmed substitute part numbers: None identified.