CMF16-393800

Common Mode Chokes Overview

The Triad Magnetics CMF16-393800 is a common mode inductor designed for through-hole PCB mounting. It features a nominal inductance of 39 mH with a tolerance range of -30% to +50% at 1 kHz. The component supports a maximum DC current of 800 mA and has a maximum DC resistance of 1.21 ohms. It operates within a temperature range of -40°C to +105°C and measures 24.5 mm in length.

Common Mode Chokes Feature Summary

• Radial leaded construction for reliable through-hole PCB integration
• Dual-channel common mode filtering capability
• Robust thermal performance across wide industrial temperature ranges

Common Mode Chokes Applications

• Power supply input filtering
• EMI suppression in AC/DC converters
• Signal line noise reduction

Common Mode Chokes Procurement Notes

Verify the suffix designation when ordering, as specific variants like the '-B' indicate bulk packaging rather than standard retail units. Confirm that the required inductance tolerance aligns with circuit design specifications, given the wide variance allowed by the manufacturer. Ensure the physical footprint matches the target PCB layout constraints before finalizing procurement decisions.

Common Mode Chokes Selection Notes

Select this component when a 39 mH inductance value is required for common mode noise attenuation. The 800 mA current rating suits moderate power applications. Consider the radial package style for manual assembly or wave soldering processes. Evaluate the 1.21 ohm DCR against voltage drop requirements in the specific circuit path.

Common Mode Chokes Part Context

This part belongs to the Triad Magnetics CMF series, which offers a range of common mode chokes with varying inductance values from 10 mH to 100 mH. The series is characterized by high saturation currents and low DC resistance, making it suitable for general-purpose EMI filtering in consumer and industrial electronics.

Common Mode Chokes Replacement Considerations

The CMF16K kit contains various inductors including the CMF16-393800, but individual replacement requires sourcing the specific part number directly. No direct single-component substitutes are listed in official documentation; verify pin compatibility and electrical ratings if considering alternative manufacturers.