The textbook corresponds to the content of the state educational standard for the training of bachelors (program "Electric Power and Electrical Engineering") and masters (program of the discipline "Power Electronics," "Electrical Engineering and Fundamentals of Electronics," "Design of Semiconductor Electrical Devices"). The issues of the use of power semiconductor devices (MSR) in electrical engineering devices are reflected. The current state of development and production of power semiconductor devices, trends in the development of the element base of power electronics are considered.