The SCM2012HS-900-03 is a 2x1.2x1.2mm surface-mount common mode filter, designed and manufactured by KOHER. This electronic component is compliant with RoHS standards and is made up of two metal plates and epoxy resin sealed between them. It uses micro-ceramic material with low capacitance and offers good filtering performance of high frequency noise. The SCM2012HS-900-03 offers better performance than other common-mode filter designs by reducing insertion losses and common-mode impedance. It offers wide frequency attenuation range from 10MHz - 1GHz and has low cut-off frequency of 10MHz. It is compact, high efficiency, and widely used in electronic circuits and telecommunications devices.