The 56T200C from Murata is a Current Sensing Transformer that is designed to monitor AC currents. This transformer has a primary current of 10 A and an inductance of 72 mH (at 10 kHz). It has a secondary DC resistance of 1.87-2.81 ohms and a terminating resistance of 200 ohms. This RoHS compliant transformer is available in a through-hole package that measures 8.89 x 16.79 x 20.19 mm and is ideal for high-frequency current sensing such as switched-mode power supplies, motor control, and electronic lighting ballasts.