108-183K

Overview

The Delevan 108-183K is a fixed surface-mount RF inductor with an 18 µH nominal inductance and ±10% tolerance. It features a maximum DC resistance of 4.4 Ohms and a rated current of 75 mA. The component utilizes a nonstandard two-lead SMD package measuring 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height. Designed for RF applications, it operates within a temperature range of -55 °C to +125 °C.

Feature Summary

• Surface-mount construction for PCB integration
• Ferrite core material for RF stability
• Nonstandard lead configuration

Applications

• RF circuit filtering
• Signal processing networks
• High-frequency impedance matching

Procurement Notes

Verify component status as the 108R-183KS variant is listed as End-of-Life. Confirm availability through authorized distributors or surplus suppliers. Check datasheet revisions for any design changes. Ensure RoHS compliance requirements are met if applicable to the target assembly. Validate pin compatibility before integration.

Selection Notes

Select this component for low-current RF signal paths requiring 18 µH inductance. Consider the high DC resistance when designing power-sensitive circuits. Evaluate thermal performance within the specified operating range. Compare physical dimensions against board space constraints. Assess suitability for high-frequency operation up to self-resonant limits.

Part Context

This part belongs to the Delevan fixed inductor family, specifically designed for radio frequency applications. It differs from power choke variants by its lower current rating and higher resistance profile. The series targets compact electronic designs requiring precise inductive values in small form factors.

Replacement Considerations

Public confirmed substitute: 108R-183KS.