At the heart of a transformer is the bobbin or coil former that serves as its winding and termination platform. The bobbin or coil former supports the winding, aligns the cores, channels the winding and provides a termination and connection method. Each bobbin is designed for use with a specific core shape, whether that core is ferrite, stacked laminations, or tape wound. There are many ways to design a transformer, so it is important to make the best bobbin and core combination selection.

At the heart of a transformer is the bobbin or coil former that serves as its winding and termination platform. The bobbin or coil former supports the winding, aligns the cores, channels the winding and provides a termination and connection method. Each bobbin is designed for use with a specific core shape, whether that core is ferrite, stacked laminations, or tape wound. There are many ways to design a transformer, so it is important to make the best bobbin and core combination selection.