108R-563H

Overview

The Delevan 108R-563H is a fixed inductor classified as an unshielded surface mount device. It features a nominal inductance of 56 µH with a tolerance of ±10%. The component has a maximum DC resistance of 23 Ohms and supports a maximum DC current of 33 mA. Electrical performance includes a minimum Q factor of 30 and a self-resonant frequency of 8.5 MHz. The unit utilizes a nonstandard package configuration with two leads.

Feature Summary

• Unshielded construction for specific electromagnetic interference requirements
• Fixed inductance value suitable for general-purpose filtering
• Surface mount termination style for automated assembly

Applications

• RF circuit filtering
• General purpose signal processing
• Power supply noise suppression

Procurement Notes

Verify the exact physical dimensions and lead configuration against the official datasheet before integration, as the package is designated as nonstandard. Confirm that the 33 mA current rating and 23 Ohm resistance meet the target circuit requirements. Ensure compatibility with standard reflow or wave soldering profiles for this specific component type.

Selection Notes

Select this component when a 56 µH inductance is required with high DC resistance characteristics. The unshielded design may be preferred to minimize size or cost where magnetic shielding is not critical. Evaluate the low current handling capability to ensure it aligns with the application's power constraints and thermal management capabilities.

Part Context

This part belongs to the Delevan family of fixed inductors, specifically designed for surface mount applications. It shares the 56 µH inductance value with other models in the portfolio but differs significantly in shielding, resistance, and current ratings. The 108R series designation indicates a specific form factor distinct from shielded power inductors or standard RF coils.

Replacement Considerations

Direct substitutes include the SP1210-563H and SP1812-563H, though these are shielded power inductors with different electrical characteristics. The S4924R-563K is another alternative but also offers shielding. Verify that the replacement meets the specific current and resistance requirements of the original design.