0819-20J

Overview

The Delevan 0819-20J is a fixed axial leaded RF inductor with a nominal inductance of 680 nH and a tolerance of ±5%. It features an unshielded molded construction designed for PCB mounting. The component has a maximum DC resistance of 200 mΩ and supports a maximum DC current of 485 mA. Key electrical specifications include a minimum Q factor of 30 and a self-resonant frequency of 440 MHz. Physical dimensions are 5.08 mm in length and 1.98 mm in diameter, utilizing standard axial terminals.

Feature Summary

• Unshielded molded coil design for RF applications
• Axial leaded termination style for through-hole mounting
• Ferrite core construction for stable inductance

Applications

• RF circuit filtering
• Impedance matching networks
• General purpose RF inductance

Procurement Notes

Verify the specific manufacturer datasheet to confirm exact electrical tolerances and physical dimensions prior to integration. Ensure that the axial lead configuration aligns with the target PCB layout requirements. Cross-reference the part number against official distributor catalogs to validate current availability status and manufacturing lifecycle stage. Confirm compliance with relevant environmental standards required for the final assembly process.

Selection Notes

Select this component when a 680 nH inductance value is required within the RF spectrum. The unshielded nature necessitates careful placement to avoid magnetic coupling with adjacent components. Verify that the operating current remains below the 485 mA limit to prevent saturation or thermal issues. Consider the 440 MHz self-resonant frequency to ensure effective performance at the intended signal frequencies.

Part Context

This part belongs to the Delevan 0819 series of fixed RF inductors. These components are characterized by their molded unshielded construction and axial leads. The series provides various inductance values tailored for radio frequency applications, offering a balance between size constraints and electrical performance for general RF circuit designs.

Replacement Considerations

Compatible alternatives within the same series include the 0819-10J, 0819-10F, and 0819-10H, which share identical physical dimensions and package styles but differ in inductance tolerance specifications.