0819-58K

Overview

The Delevan 0819-58K is an axial leaded RF inductor featuring a molded unshielded coil construction. It provides a nominal inductance of 27 µH with a tolerance of ±10%. The component exhibits a maximum DC resistance of 4.7 Ω and supports a maximum DC current of 100 mA. Key electrical characteristics include a minimum Q factor of 25 and a self-resonant frequency of 17 MHz. Physical dimensions are 5.08 mm in length and 1.98 mm in diameter, designed for PCB mount applications.

Feature Summary

• Molded unshielded coil design for RF circuit integration
• Axial leaded termination style for through-hole mounting
• Iron core construction for stable inductance performance

Applications

• RF signal processing circuits
• Impedance matching networks
• Filtering applications in radio frequency systems

Procurement Notes

Verify the manufacturer designation carefully, as API Delevan assets have been acquired by other entities. Confirm RoHS compliance status, as listings indicate non-compliance. Ensure the specific suffix matches the required tolerance and current rating parameters before ordering to avoid functional mismatches in sensitive RF designs.

Selection Notes

Select this component when an axial leaded form factor is required for 27 µH inductance in RF environments. Consider the 100 mA current limit and 4.7 Ω DC resistance against circuit requirements. The unshielded nature necessitates layout considerations to prevent magnetic coupling with adjacent components compared to shielded alternatives.

Part Context

This part belongs to the Delevan 0819 series of fixed RF inductors. The series utilizes molded unshielded coils with iron cores, offering various inductance values and tolerances. These components are engineered for general-purpose RF applications requiring reliable performance in axial packages.

Replacement Considerations

Cross-reference with other axial RF inductors offering 27 µH ±10% and similar current ratings. Verify physical footprint compatibility (5.08 mm x 1.98 mm) and self-resonant frequency constraints when substituting.