ETD34 High Frequency Transformer Ferrite Core Power Transformer for Switching Power Supply Charger Product Description Our ETD34 high frequency transformer adopts ETD34 ferrite core, designed for switching power supplies and chargers. This 55W power transformer is built with FERROXCUBE grade core and bobbin, delivering stable inductance performance, low DC resistance and controllable leakage inductance. It supports custom winding configuration and OEM service to match your