103R-183FS

Overview

The Delevan 103R-183FS is an unshielded 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 supports a maximum DC current of 130 mA. The component exhibits a minimum Q factor of 25 and a self-resonant frequency of 28 MHz. Its physical dimensions are 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height.

Feature Summary

• Unshielded construction for standard RF circuit integration
• High precision ±1% inductance tolerance
• Surface-mount design for PCB assembly

Applications

• RF signal processing circuits
• Impedance matching networks
• Filter applications in radio frequency systems

Procurement Notes

Verify the specific suffix FS against official manufacturer documentation to confirm exact electrical tolerances and packaging specifications. Ensure compatibility with standard SMD reflow processes. Cross-reference the part number with authorized distributors to validate current availability and compliance status before procurement.

Selection Notes

Select this component when precise 18 µH inductance is required in compact RF layouts. The unshielded design necessitates careful placement to minimize electromagnetic interference with adjacent traces. Verify that the 130 mA current rating meets the operational requirements of the target circuit without saturation.

Part Context

This part belongs to the Delevan 103/R series of fixed RF inductors. These components are designed for high-frequency applications requiring stable inductance values. The series offers various inductance options within a consistent small footprint, facilitating standardized design practices across different RF modules.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.