0819-38K

Overview

The Delevan 0819-38K is a fixed axial leaded RF inductor with a nominal inductance of 3.9 µH and a tolerance of ±10%. It features a molded unshielded coil construction using an iron core, designed for PCB mounting. The component has a maximum DC resistance of 1.5 Ohms and a rated maximum DC current of 178 mA. Its physical dimensions are cylindrical, with a body length of 5.08 mm and a diameter of 1.98 mm. Standard terminals are provided for through-hole integration.

Feature Summary

• Molded unshielded coil design utilizing an iron core for stable inductance characteristics
• Axial leaded configuration optimized for standard PCB mounting applications
• Fixed inductance value suitable for general-purpose filtering and noise suppression

Applications

• RF circuit filtering
• General-purpose energy storage
• Noise suppression in electronic circuits

Procurement Notes

Verify the specific manufacturer designation, as API Delevan assets may be managed by other entities. Confirm RoHS compliance status, as some listings indicate non-compliance while others suggest lead-free variants. Ensure the ordering suffix matches the required tolerance and packaging format. Cross-reference the datasheet for exact thermal ratings and self-resonant frequency limits before finalizing procurement specifications.

Selection Notes

Select this component when a 3.9 µH inductance with ±10% tolerance is required for axial mounting. Consider the 178 mA current rating and 1.5 Ohm DC resistance to ensure compatibility with the target circuit's power constraints. The unshielded design requires adequate spacing to prevent magnetic interference with nearby components during layout.

Part Context

This part belongs to the Delevan 0819 series of fixed RF inductors. The series offers various inductance values and tolerances, all sharing a consistent molded axial form factor. These components are engineered for reliability in radio frequency applications where compact size and stable performance are prioritized over shielding requirements.

Replacement Considerations

Direct substitutes include the 0819R-38K variant, which shares identical electrical parameters but may differ in environmental compliance or packaging. Verify that any replacement maintains the same 3.9 µH inductance, 178 mA current rating, and axial package dimensions to ensure mechanical and electrical interchangeability.