108R-104KS

Overview

The Delevan 108R-104KS is a fixed RF inductor designed for surface-mount technology applications. It features an unshielded construction with an inductance of 100 µH and a tolerance of 10%. The component exhibits a maximum DC resistance of 31 Ohms and supports a maximum DC current of 28 mA. It utilizes nonstandard two-lead terminals suitable for PCB mounting. The device operates within a standard commercial temperature range and is packaged in reels or cut tape formats for automated assembly processes.

Feature Summary

• Unshielded magnetic core design optimized for radio frequency signal handling
• Surface-mount configuration with nonstandard two-lead terminal structure
• High DC resistance characteristic suitable for specific impedance matching requirements

Applications

• Radio frequency circuit filtering
• Impedance matching networks
• RF signal processing modules

Procurement Notes

Verify the exact physical dimensions and lead configuration against the official datasheet before integration, as the nonstandard leads may require custom footprints. Confirm availability status through authorized distributors, as supply levels can fluctuate. Ensure the selected packaging format matches your assembly line capabilities. Cross-reference the manufacturer part number to avoid confusion with similar series components that may have different electrical characteristics.

Selection Notes

Select this component when a high-inductance value is required in a compact surface-mount form factor for RF environments. The unshielded nature necessitates careful layout planning to minimize electromagnetic interference with adjacent traces. Evaluate the low current rating to ensure it meets the operational demands of the target circuit without saturation. Consider the thermal performance under continuous load conditions relative to the board's heat dissipation capacity.

Part Context

This component belongs to the 108R series of RF inductors manufactured by Delevan. The series is characterized by unshielded air-core or ferrite constructions tailored for high-frequency applications. These inductors are distinct from power chokes due to their lower current handling and specific RF optimization. The 108R designation indicates a specific family within the broader Delevan inductor portfolio focused on radio frequency stability.

Replacement Considerations

Direct substitutes include the 108R-104K variant, which shares identical electrical specifications but may differ in packaging or suffix coding. Verify mechanical compatibility and lead finish before substitution. No other cross-manufacturer equivalents are confirmed in the provided documentation.