POWER SEMICONDUCTOR MODULE, ELECTRICITY TRANSFORMER DEVICE, AND RAILWAY CAR

A pair of elements 62 that includes a Si-MOSFET and a Si-FWD connected in inverse parallel and operates as a positive side arm of an electric-power conversion apparatus and a pair of elements 64 that operates as a negative side arm of the electric-power conversion apparatus are provided, where the first and second pairs of elements 62 and 64 are accommodated in one power semiconductor module 60A to compose a 2-in-1 module, and terminals S1 and D2 are included which enables series connection of the pairs of elements 62 and 64.