High frequency transformer

The utility model relates to a high frequency transformer, it includes magnetic core, radiator, primary coil and secondary coil, and the primary coil coiling is equipped with the through -hole that is used for holding the magnetic core on the radiator on the magnetic core, and in the magnetic core set up the through -hole on the radiator, secondary coil set up the side at the radiator. The utility model discloses both improved the radiating effect, and reduced the secondary coil coiling degree of difficulty again, simplified the wiring and be convenient for production to the cost is practiced thrift in the use of reducing coupling cable.