103R-123F

Overview

The Delevan 103R-123F is an unshielded surface-mount RF inductor designed for radio frequency applications. It features a nominal inductance of 12 µH with a tight tolerance of ±1%. The component exhibits a maximum DC resistance of 3.8 Ohms and supports a maximum DC current of 160 mA. Key electrical characteristics include a minimum Q factor of 30 and a self-resonant frequency of 24 MHz. The physical dimensions are standardized at 2.54 mm by 2.54 mm, with a height of 1.91 mm, suitable for PCB mounting.

Feature Summary

• Unshielded construction optimized for RF signal integrity
• High precision inductance tolerance for stable circuit performance
• Surface-mount design facilitating automated assembly processes

Applications

• Radio frequency filtering circuits
• RF impedance matching networks
• General purpose RF signal processing

Procurement Notes

Verify the manufacturer part number against official API Delevan documentation to ensure authenticity. Confirm that the specific suffix matches the required tolerance and electrical specifications. Check RoHS compliance status through the official datasheet as regulatory requirements vary by production batch. Ensure the ordering quantity aligns with standard reel packaging constraints provided by the supplier.

Selection Notes

Select this component when a precise 12 µH inductance is required in a compact 1008 footprint. The unshielded design necessitates careful layout consideration to prevent electromagnetic interference with adjacent components. Verify that the 160 mA current rating meets the operational demands of the target circuit without causing saturation or excessive heating.

Part Context

This component belongs to the Delevan 103/R series of fixed RF inductors. The series offers various inductance values within a consistent small form factor. These parts are engineered for high-frequency stability and are commonly utilized in telecommunications and consumer electronics where space efficiency and signal fidelity are critical design parameters.

Replacement Considerations

Direct substitutes must match the 12 µH value, 1% tolerance, and 1008 package size. Verify equivalent DC resistance and current ratings to maintain circuit performance. Cross-reference with other manufacturers offering unshielded SMD RF inductors with similar self-resonant frequencies.