0819-78G

Overview

The Delevan 0819-78G is a fixed axial leaded RF inductor with an inductance of 180 µH and a tolerance of 2%. It features a molded unshielded construction with a maximum DC resistance of 20 Ohms and a minimum Q factor of 35. The component has a self-resonant frequency of 7.5 MHz and a maximum DC current rating of 49 mA. Physical dimensions are 5.08 mm in length and 1.98 mm in diameter.

Feature Summary

• Molded unshielded coil design for RF applications
• Axial lead termination style for PCB mounting
• High precision tolerance for stable circuit performance

Applications

• RF circuits
• PCB mount applications

Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm exact electrical parameters, as variations exist within the series. Confirm RoHS compliance status directly from the datasheet, as some listings indicate non-compliance. Ensure the ordering quantity matches the manufacturer's standard packaging requirements before finalizing procurement.

Selection Notes

Select this component when a high-inductance value of 180 µH is required for RF filtering or tuning. Consider the low current rating of 49 mA and the unshielded nature of the coil during layout planning. Verify that the physical axial package fits the target PCB footprint and that the operating frequency remains below the 7.5 MHz self-resonant limit.

Part Context

This part belongs to the Delevan 0819 series of fixed RF inductors. The series utilizes a molded unshielded construction with axial leads. Other variants in the family offer different inductance values and tolerances, such as the 0819-78F which shares similar dimensions but may differ in tolerance specifications.

Replacement Considerations

The 0819-78F is a documented variant within the same series offering 1% tolerance instead of 2%, while maintaining identical inductance and physical dimensions.