15M222K

Overview

The Gowanda Electronics 15M222K is a general-purpose RF inductor featuring a molded, unshielded wirewound construction with a powdered iron core. It offers a nominal inductance of 22 µH with a tolerance of ±10%. The component exhibits a maximum DC resistance of 2.5 Ω and supports a maximum rated current of 175 mA. Key electrical characteristics include a minimum quality factor of 75 at the 2.5 MHz test frequency and a self-resonant frequency of 30 MHz. Designed for axial through-hole mounting, it utilizes tin/lead (Sn/Pb) terminations.

Feature Summary

• Unshielded molded wirewound design utilizing a powdered iron core for stable RF performance
• Axial lead configuration suitable for through-hole PCB integration
• High self-resonant frequency capability up to 30 MHz for broadband applications

Applications

• RF circuit filtering and impedance matching networks
• General purpose signal processing inductors
• Broadband power transformer biasing components

Procurement Notes

Verify that the specific order suffix matches the required termination plating, as standard configurations may utilize tin/lead alloys. Confirm RoHS compliance status if lead-free requirements are mandated for the assembly process. Ensure axial lead spacing aligns with the target printed circuit board layout before finalizing procurement quantities.

Selection Notes

Select this component when an unshielded axial inductor is required for frequencies near 2.5 MHz. The 22 µH value and 175 mA current rating suit low-power RF stages. Consider the lack of shielding for potential electromagnetic interference sensitivity in dense layouts. Verify thermal dissipation capabilities given the 2.5 Ω DC resistance under continuous load conditions.

Part Context

This part belongs to Gowanda's line of fixed RF inductors designed for demanding aerospace and industrial environments. The manufacturer provides both standard and custom magnetic components, often adhering to military specifications such as M39010. These components are engineered for reliability in critical systems where consistent inductive performance is essential.

Replacement Considerations

Direct substitutes must match the 22 µH inductance, axial package, and similar current ratings. Cross-reference with other Gowanda series parts like the 15M series for identical form factors. Verify that alternative vendors provide comparable Q-factor and self-resonant frequency specifications to maintain circuit integrity.