103R-183F

Overview

The Delevan 103R-183F is an unshielded fixed surface-mount RF inductor with a nominal inductance of 18 µH and a tolerance of ±1%. It features a maximum DC resistance of 5.8 Ohms and a rated current of 130 mA. The component utilizes a ferrite core and operates within a temperature range of -55°C to 125°C. Electrical characteristics include a minimum Q factor of 25 at 2.5 MHz and a self-resonant frequency of 28 MHz. The physical dimensions are 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height.

Feature Summary

• Unshielded design suitable for applications requiring minimal magnetic interference
• High precision inductance tolerance of ±1% for accurate circuit tuning
• Ferrite core construction optimized for radio frequency performance

Applications

• RF signal processing circuits
• Impedance matching networks
• Filtering components in communication systems

Procurement Notes

Verify RoHS compliance status as documentation indicates non-compliance. Confirm availability through authorized distributors due to potential discontinuation or limited stock. Ensure ordering suffixes match specific tolerance requirements if variations exist within the series. Validate lead times with suppliers prior to finalizing procurement plans.

Selection Notes

Select this component when precise 18 µH inductance is required for RF applications. Consider the 130 mA current rating and 5.8 Ohm DC resistance for power constraints. The unshielded package requires layout consideration to prevent coupling. Verify thermal management capabilities within the specified operating temperature range.

Part Context

This part belongs to the Delevan 103/R series of RF inductors. It shares similar electrical parameters with variants like 103-183GS but differs in tolerance and packaging. The series is designed for surface-mount technology integration in compact electronic assemblies.

Replacement Considerations

Direct substitutes include 103-183F and 103R-183KS, though tolerance and packaging may vary. Cross-reference specifications carefully to ensure compatibility with existing circuit designs.