Abstract: A device connector 1 includes a pair of terminal portions 2, 2 facing a mating device and a housing body 3 made of synthetic resin containing the pair of terminal portions, wherein each of the terminal portions includes a device-side terminal 21 configured to engage with the mating device, an electric wire-side terminal 22 connected to an electric wire, and a connection conductor 23 having a flexibility and configured to connect the device-side terminal and the electric wire-side terminal, wherein the connection conductor is formed to have an extra length portion 23C and extend toward the device-side terminal, the housing body includes a housing unit 4 containing the pair of terminal portions, and an insulation wall 5 located in the housing unit to insulate the connection conductors from each other, and the insulation wall configured to include a material with a lower Mohs hardness than the housing unit.