PROBLEM TO BE SOLVED: To provide an ultrasonic device unit, an ultrasonic probe, and an ultrasonic device capable of facilitating wiring connection and of being miniaturized.SOLUTION: An ultrasonic device unit comprises: an ultrasonic device and a flexible printed board connected with the ultrasonic device. The flexible printed board comprises: a device connection part connected with the ultrasonic device a first connector part that includes a plurality of external connection terminals connected with the ultrasonic device a second connector part that includes a plurality of external connection terminals connected with the ultrasonic device a first bending part that couples between the device connection part and the first connector part and a second bending part that couples between the device connection part and the second connector part. A distance between the device connection part and the first connector part at the first bending part and a distance between the device connection part and the second connector part at the second bending part, are different from each other.SELECTED DRAWING: Figure 8COPYRIGHT: (C)2019,JPO&INPIT【課題】配線接続が容易で、小型化が可能な超音波デバイスユニット、超音波探触子、及び超音波装置を提供する。【解決手段】超音波デバイスユニットは、超音波デバイスと、超音波デバイスに接続されるフレキシブルプリント基板と、を備え、フレキシブルプリント基板は、超音波デバイスが接続されるデバイス接続部と、超音波デバイスに接続される複数の外部接続端子を含む第一コネクター部と、超音波デバイスに接続される複数の外部接続端子を含む第二コネクター部と、デバイス接続部及び第一コネクター部を連結する第一屈折部と、デバイス接続部及び第二コネクター部を連結する第二屈折部と、を備え、第一屈折部におけるデバイス接続部及び第一コネクター部の距離と、第二屈折部におけるデバイス接続部及び前記第一コネクター部の距離とが異なる。【選択図】図8