The 749196218 from Wurth Elektronik is a Flexible Transformer that is ideal for flyback converters, forward converters, push-pull converters, and step-up/step-down converters (SEPIC) applications. It has an inductance of 21.6 µH and a turns ratio of 1:1:1:1:1.1. This transformer has a current rating of 0.8 A and a DC resistance of less than 200 milli-ohms. It consists of six identical windings with low leakage inductance and offers an isolation voltage of up to 1500 V (AC). This RoHS-compliant transformer is available in a surface-mount package that measures 16.8 x 16.3 x 7.4 mm.