The 750107 kit contains the Linear Technology DC1557A evaluation board with 3 pre-selected transformers for applications up to 12W. The transformers have output voltages of 12V, 3.3V and 5V. Other versions, with different output voltages and currents, are available from stock. To make this evaluation kit a real solution for every design engineer, Linear Technology and Würth Elektronik added all of the documentation, specifications and design tips for the assortment.