106-391F

Overview

The Delevan 106-391F is a fixed RF inductor designed for surface-mount applications. It features an unshielded wirewound construction with iron core material, suitable for general-purpose radio frequency circuits. The component offers a nominal inductance of 390 nH with a tight tolerance of 1%. It supports a maximum DC current of 475 mA and exhibits a maximum DC resistance of 450 mOhms. The self-resonant frequency is specified at 280 MHz, ensuring stable performance in high-frequency environments. The device utilizes a nonstandard two-lead SMD package.

Feature Summary

• Wirewound construction utilizing iron core material for consistent RF performance
• Unshielded design optimized for general-purpose inductor applications
• Surface-mount termination style for automated PCB assembly integration

Applications

• RF circuit filtering
• General-purpose inductive components
• High-frequency signal processing

Procurement Notes

Verify the specific lead configuration against the mechanical drawing, as this part uses a nonstandard two-lead SMD footprint rather than a standard rectangular chip form factor. Confirm RoHS compliance status prior to procurement, as historical data indicates potential lead content variations depending on the manufacturing batch date. Ensure the selected supplier provides the official API Delevan datasheet to validate the 450 mOhm DCR and 475 mA current ratings for your specific thermal management requirements.

Selection Notes

Select this component when a low-inductance value near 390 nH is required with minimal parasitic effects in unshielded configurations. The 1% tolerance makes it suitable for precision tuning applications where tighter tolerances than standard 5% parts are necessary. Consider the 450 mOhm resistance limit for power loss calculations in low-current RF paths. This part is appropriate for designs prioritizing compactness over magnetic shielding capabilities.

Part Context

The 106 series represents API Delevan's line of fixed RF inductors characterized by wirewound technology. These components are engineered for stability in radio frequency environments. The 106-391F specifically targets applications requiring precise low-nanohenry values. Unlike shielded variants, this unshielded model allows for flexible layout placement but requires careful consideration of electromagnetic interference in dense circuit boards.

Replacement Considerations

No public confirmed substitute part numbers are available.