CMF-0220

Common Mode Chokes Overview

The Tamura CMF-0220 is a common mode choke filter designed for through-hole mounting. It features an inductance of 22 mH and a DC resistance of 3.3 ohms. The component supports a current rating of 0.3 A (300 mA) and withstands voltages up to 250 VAC at 50/60 Hz frequencies. It utilizes a vertical package with four PC pins, measuring 17.50 mm in length and 16.00 mm in width.

Common Mode Chokes Feature Summary

• Provides common mode noise suppression for two-line circuits
• Supports through-hole vertical mounting configuration
• Engineered for operation at standard 50/60 Hz line frequencies

Common Mode Chokes Applications

• Power supply input filtering
• EMI suppression in AC mains circuits
• Signal integrity protection in low-current applications

Common Mode Chokes Procurement Notes

Verify the specific manufacturer datasheet for RoHS compliance status, as documentation indicates transition periods. Confirm pin compatibility and thermal requirements against the target PCB layout. Ensure the 300mA current rating meets the operational load without saturation. Cross-reference the 22mH inductance value with circuit simulation results to validate noise attenuation performance at the intended frequency range.

Common Mode Chokes Selection Notes

Select this component when a 22 mH inductance is required for common mode noise reduction in two-wire configurations. The 3.3 ohm DC resistance must be acceptable within the power budget. Verify that the 0.3 A current limit aligns with the maximum expected load current. The vertical through-hole form factor dictates the mechanical assembly constraints on the printed circuit board.

Common Mode Chokes Part Context

This component belongs to Tamura's common mode choke filter series. It serves as an electromagnetic interference suppression device. The design focuses on attenuating high-frequency noise while passing differential signals. It is distinct from differential mode chokes by its dual-winding structure targeting common mode currents.

Common Mode Chokes Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Verify electrical equivalence if considering alternative manufacturers. Ensure inductance, current rating, and physical dimensions match the original design specifications.