15M243J

Overview

The Gowanda Electronics 15M243J is a fixed, unshielded molded RF inductor designed for axial through-hole mounting. It features a ceramic core and offers an inductance of 240 µH with a tolerance of ±5%. The component has a maximum DC resistance of 7.8 ohms and a rated current of 101 mA. Its self-resonant frequency is 5.9 MHz, tested at 790 kHz. Operating temperature ranges from -55°C to 105°C. Dimensions are approximately 0.650" L x 0.250" W (16.51mm x 6.35mm) with a height of 0.250" (6.35mm).

Feature Summary

• Unshielded molded construction suitable for high-frequency applications.
• Axial lead configuration for standard through-hole PCB mounting.
• Ceramic core material provides stable performance in RF environments.

Applications

• Radio frequency filtering circuits
• Impedance matching networks
• Broadband power transformer biasing

Procurement Notes

Verify the specific suffix requirements for your application. The base part number 15M243J indicates a standard leaded variant. Confirm if RoHS compliance or lead-free plating is required by checking for the LF suffix (15M243JLF). Ensure the axial package matches your board layout constraints before ordering.

Selection Notes

Select this component when a high-inductance value is needed in a compact axial form factor. The 240 µH rating suits lower frequency RF stages compared to smaller values. Consider the 7.8 ohm DCR impact on circuit efficiency. Verify that the 101 mA current limit meets the operational load requirements of the target system.

Part Context

This part belongs to Gowanda's MLRF series of molded RF coils. These components are engineered for demanding aerospace, defense, and medical applications. The series offers various inductance values in both shielded and unshielded configurations, providing flexibility for different electromagnetic interference requirements.

Replacement Considerations

The 15M243JLF is the lead-free equivalent version. Other Gowanda parts in the same series may offer similar electrical characteristics but differ in shielding or package type. Direct cross-manufacturer substitution requires careful verification of physical dimensions and magnetic properties.