0819-54J

Overview

The Delevan 0819-54J is a leaded RF inductor featuring an axial termination style and unshielded molded construction. It provides an inductance of 18 uH with a tight tolerance of 5%. The component exhibits a maximum DC resistance of 3.8 ohms and supports a maximum DC current of 112 mA. Key electrical characteristics include a minimum Q factor of 40 and a self-resonant frequency of 23 MHz. Designed for PCB mount applications, it measures 5.08 mm in length and 1.98 mm in diameter.

Feature Summary

• Molded unshielded coil construction for RF applications
• Axial leaded termination style suitable for PCB mounting
• High precision inductance tolerance for stable circuit performance

Applications

• RF circuits
• Filter networks
• Impedance matching networks

Procurement Notes

Verify the specific suffix 'J' indicates the required 5% tolerance against other variants like 'G' or 'H'. Confirm axial lead dimensions match the target PCB footprint. Ensure the 112 mA current rating meets the operational requirements of the intended circuit design to prevent saturation.

Selection Notes

Select this component when a precise 18 uH value is needed with strict tolerance control. The unshielded design requires consideration for electromagnetic interference in dense layouts. Verify that the 23 MHz self-resonant frequency aligns with the operating bandwidth of the application.

Part Context

This part belongs to the Delevan 0819 series of RF inductors. The series offers various inductance values and tolerance options. The 0819-54J specifically targets applications requiring moderate inductance with high accuracy.

Replacement Considerations

Check equivalent parts from other manufacturers offering 18 uH axial inductors with similar 3.8 ohm resistance and 112 mA ratings. Ensure physical dimensions and lead spacing are compatible.