The electronic control unit includes a vehicle assembly and the electronic control unit components

An electronic control unit and the electronic control unit includes a vehicle component. The present invention relates to an ECU assembly, which includes a cover portion, one or more MOSFET (1), and the ECU substrate main body, wherein said cover portion comprises a cover member (3) having a latching portion (6) of the cover means (3) is fixed by the locking portion (6) on the body ECU, between the lid member (3) and the substrate (9) of the MOSFET (1) is placed, wherein said cover portion further includes an intermediate member, the intermediate member into close contact and elastically pressed against said MOSFET (1), said MOSFET (1) in close contact with the substrate, whereby said MOSFET (1) is reliably fixed the ECU assembly. The present invention further relates to a vehicle comprising the ECU assembly.