0819-82J

Overview

The Delevan 0819-82J is a leaded RF inductor from the 0819 series, featuring a molded unshielded coil construction. It provides an inductance of 270 uH with a tolerance of 5% and a maximum DC resistance of 3.5 ohms. The component supports a maximum DC current of 100 mA and achieves a minimum Q factor of 45. Its self-resonant frequency is specified at 16 MHz. Designed for PCB mount applications, it utilizes axial termination and measures 5.08 mm in length with a diameter of 1.98 mm.

Feature Summary

• Molded unshielded coil design for RF applications
• Axial leaded termination style for through-hole mounting
• Ferrite core construction supporting high-frequency stability

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 that the part number corresponds to the original Delevan specifications rather than legacy or alternative manufacturer equivalents. Ensure the axial package dimensions match your PCB layout requirements before finalizing procurement orders.

Selection Notes

Select this component for applications requiring a 270 uH inductance with tight 5% tolerance in an RF environment. Consider its 16 MHz self-resonant frequency to ensure operation remains below the resonance point for intended filter or matching network functions. Evaluate the 100 mA current rating against peak circuit loads to prevent saturation.

Part Context

This part belongs to the Delevan 0819 series of leaded RF inductors. These components are characterized by their molded unshielded construction and axial leads, distinguishing them from surface-mount alternatives like the 0805R series. The series is designed for robust performance in radio frequency circuits where leaded mounting is preferred.

Replacement Considerations

Cross-reference with other manufacturers' 270 uH axial RF inductors if availability is constrained. Verify that substitute parts maintain similar self-resonant frequencies and Q factors to ensure circuit performance consistency.