103R-183KS

Overview

The Delevan 103R-183KS is an unshielded surface-mount RF inductor with an inductance of 18 uH and a tolerance of 10%. It features a maximum DC resistance of 5.8 Ohms and a minimum Q factor of 25 at its self-resonant frequency of 28 MHz. The component supports a maximum DC current of 130 mA and operates within a temperature range of -55°C to +125°C. Its physical dimensions are 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height.

Feature Summary

• Unshielded chip construction for standard RF applications
• Ferrite core material providing stable inductance characteristics
• Surface mount termination suitable for PCB integration

Applications

• RF circuit filtering
• Impedance matching networks
• General purpose RF signal processing

Procurement Notes

Verify the specific manufacturer source when sourcing this component, as API Delevan assets have been acquired by other entities. Confirm RoHS compliance status through official documentation rather than distributor summaries. Ensure the ordering suffix matches the required tolerance and packaging format for your production line requirements.

Selection Notes

Select this part for low-current RF designs where unshielded components are acceptable. Compare the 5.8 Ohm DC resistance against system power loss limits. Evaluate the 130 mA current rating against peak operational loads. Consider the 28 MHz self-resonant frequency relative to the target operating band to ensure effective inductive behavior.

Part Context

This component belongs to the 103/R series of fixed RF inductors manufactured by Delevan. It is categorized under SMD RF Inductors within the broader inductors, chokes, and coils subcategory. The series utilizes a phenolic core material and offers various tolerance options including J (5%), H (3%), G (2%), and F variants alongside the standard K (10%) version.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.