The CST2010-150LD from Coilcraft is an Automotive Qualified Current Sense Transformer that has been designed for automotive systems applications. This transformer has a primary current of 47 A and an isolation voltage of 1500 V (RMS). It has an inductance of 19.2 mH and a turns ratio of 1:150. This AEC-Q200-qualified transformer is designed for use over 1 MHz and has a very low primary DC resistance. It is available in a surface-mount package that measures 19.91 x 14.55 x 10.5 mm.