103R-272KS

Overview

The Delevan 103R-272KS is an unshielded surface-mount RF inductor with a nominal inductance of 2.7 µH and a tolerance of ±10%. It features a maximum DC resistance of 1.15 Ω and a rated current of 290 mA. The component measures 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height. It exhibits a minimum Q factor of 22 and a self-resonant frequency of 77 MHz. Designed for PCB mounting, it operates within a temperature range of -55°C to +125°C.

Feature Summary

• Unshielded ferrite core construction for RF applications
• Standard SMD termination style for PCB mounting
• Compact 1010 metric footprint dimensions

Applications

• RF choke circuits
• Signal filtering in radio frequency systems
• Impedance matching networks

Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm exact electrical tolerances and packaging configurations. Ensure that the selected variant aligns with the required DC resistance and current ratings for the target circuit design before finalizing procurement orders.

Selection Notes

Select this component when a 2.7 µH inductance value is required for high-frequency signal processing. Consider the 290 mA current rating and 1.15 Ω DC resistance limits to ensure proper thermal management and signal integrity within the intended RF application environment.

Part Context

This part belongs to the Delevan 103/R series of fixed RF inductors. These components are designed for surface-mount technology and utilize ferrite cores to provide stable inductance values in compact packages suitable for modern electronic assemblies requiring precise RF characteristics.

Replacement Considerations

Direct substitutes include other 2.7 µH unshielded SMD RF inductors from compatible manufacturers, provided they match the 1010 package dimensions, 290 mA current rating, and similar self-resonant frequency specifications.