CMS3-6-R is a surface mount toroidal common mode inductor designed for EMI filtering and noise suppression applications. It features a minimum open circuit inductance (OCL) of 217 µH, a maximum RMS current rating of 2.85 A, and typical DC resistance of 0.020 O at 20°C. The inductor provides 300 Vdc winding-to-winding isolation, a 1:1 turns ratio, and typical leakage inductance of 1.90 µH with interwinding capacitance of 3.90 pF. With an operating temperature range of -40°C to +160°C and ferrite core construction meeting UL94V-0 flammability standards, this component is well-suited for DC-DC brick power supplies, discrete output supplies, and point-of-use power supplies.