The 749251020 from Wurth Elektronik is an Automotive Qualified Current Sense Transformer that is ideal for AC current detection, switch mode power supply (SMPS), over-load sensing, load drop/shutdown detection, metering, load measurement, and high-frequency current sensing applications. It has a current rating of 20 A and a voltage rating of 80 V.  This AEC-Q200 Grade 1-qualified transformer has an inductance of 80 µH and a turns ratio of 1:20. It has an operating frequency of up to 1 MHz and operates over a temperature range from -40°C to +125 °C. This RoHS-compliant current sense transformer is available in a surface-mount package that measures 7.7 x 6.9 x 5.33 mm.