0819-40K

Overview

The Delevan 0819-40K is an axial leaded RF inductor with a nominal inductance of 4.7 µH and a tolerance of 10%. It features an unshielded molded construction suitable for PCB mounting. The component has a maximum DC resistance of 2.1 Ohms and supports a maximum DC current of 150 mA. Key electrical specifications include a minimum Q factor of 30 and a self-resonant frequency of 160 MHz. Physical dimensions are 5.08 mm in length and 1.98 mm in diameter.

Feature Summary

• Unshielded molded coil design for RF applications
• Axial leaded termination style for through-hole mounting
• Standard terminal configuration

Applications

• RF circuit filtering
• Impedance matching networks
• General purpose RF signal processing

Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm exact tolerance and current ratings, as variations exist within the series. Confirm RoHS compliance status and lead content requirements prior to integration, as this component may not meet standard environmental directives. Cross-reference the Mouser part number 807-0819-40KTR for accurate supply chain data.

Selection Notes

Select this component when an unshielded axial inductor with 4.7 µH nominal value is required for RF environments. Ensure the operating current does not exceed 150 mA to maintain performance integrity. Consider the 160 MHz self-resonant frequency limit for high-frequency application suitability. Verify that the physical footprint of 5.08 mm length fits the target PCB layout constraints.

Part Context

This part belongs to the Delevan 0819 series of fixed RF inductors. The series offers various inductance values with different tolerance options, typically designated by suffix letters such as J or K. These components are designed for general-purpose RF applications requiring reliable performance in unshielded configurations.

Replacement Considerations

The 0819-40J is a documented alternative within the same series offering identical 4.7 µH inductance but potentially differing in tolerance or current rating specifications. Verify electrical equivalence before substitution.