CMF23V-393121

Common Mode Chokes Overview

The Triad Magnetics CMF23V-393121 is a common mode inductor designed for vertical mounting with radial termination. It features an inductance of 39 mH at 1 kHz with a tolerance of +50%/-30%. The component supports a maximum DC current of 1.2 A and has a maximum DC resistance of 766 mOhms. It operates within a temperature range of -40°C to +105°C and measures 29 mm in length.

Common Mode Chokes Feature Summary

• Provides common mode noise suppression for two-line circuits
• Designed for vertical through-hole mounting applications
• Constructed for operation in high-temperature environments up to 105°C

Common Mode Chokes Applications

• Power supply input filtering
• EMI suppression in electronic equipment
• Signal line noise reduction

Common Mode Chokes Procurement Notes

Verify the specific suffix (e.g., -B) against your bill of materials, as it may indicate bulk packaging rather than a functional change. Confirm that the 39 mH inductance value aligns with your circuit requirements at the specified test frequency. Ensure the 1.2 A current rating meets the operational load without saturation. Check that the radial lead diameter fits your PCB layout constraints.

Common Mode Chokes Selection Notes

Select this component when a 39 mH common mode choke is required for vertical board mounting. The 1.2 A current rating suits moderate power applications. Verify that the 766 mOhm DCR is acceptable for your voltage drop calculations. Consider the -40°C to +105°C operating range for environmental suitability. Compare against similar CMF series parts if different inductance or current values are needed.

Common Mode Chokes Part Context

This part belongs to the Triad Magnetics CMF series of common mode chokes. These components are engineered for electromagnetic interference suppression in AC/DC power lines and signal circuits. The CMF23V variant specifically denotes the frame choke construction style within this product family, offering robust performance for industrial and commercial electronics.

Common Mode Chokes Replacement Considerations

The CMF23V-393121-B is a verified substitute variant differing only in packaging format. No other direct electrical substitutes are confirmed in the provided documentation. Verify pin compatibility and mechanical dimensions before replacing with non-series components.