Detection accuracy of a collector sense in detecting a voltage is improved.
A power module 300 has a first conductor 410 and a second conductor 411 to which a plurality of active elements 317 and 315 configuring upper and lower arm circuits are connected. In addition, the power module 300 has an AC side terminal 320B protruding from one side 301a, a positive electrode side terminal 315B and a negative electrode side terminal 319B which protrude from the other side 301b, an intermediate electrode portion 414 that connects the first conductor 410 and the second conductor 411 to each other, and a collector sense wiring 452a in which a collector electrode of an active element 157 and the first conductor 410 are connected to each other via a sense connection portion 415. The intermediate electrode portion 414 is disposed close to the active element 157 which is closest to the AC side terminal 320B, and the sense connection portion 415 is disposed close to the active element 157 which is farthest from the AC side terminal 320B.