An ultrasonic transducer module according to the present invention includes an ultrasonic transducer that includes a longitudinal axis of an insertion portion and that transmits and receives ultrasonic waves on a plane parallel to the longitudinal axis, and transmits and receives ultrasonic waves from the ultrasonic transducer. A substrate provided on the opposite side of the surface, wherein the substrate is electrically connected to the ultrasonic transducer, and a first wiring pad is formed on a portion different from the connection portion with the ultrasonic transducer； A housing hole that accommodates the ultrasonic transducer and the substrate, and a housing hole that is connected to the housing hole and can hold a part of the substrate, each of which is formed on the outer peripheral surface of the housing. And a plurality of second wiring pads provided in the holding holes, each of which is electrically connected to a corresponding electrode pad among the plurality of electrode pads and electrically connected to the first wiring pad； And a housing having本発明に係る超音波振動子モジュールは、挿入部の長手軸を含み、かつ該長手軸に平行な面上で超音波を送受信する超音波振動子と、超音波振動子の超音波を送受信する表面と反対側に設けられた基板であって、超音波振動子と電気的に接続するとともに、該超音波振動子との接続部分と異なる部分に第１の配線パッドが形成された基板と、超音波振動子および基板を収容する収容穴、および収容穴に連なり、基板の一部を保持可能な保持穴がそれぞれ形成された筐体であって、当該筐体の外周面に設けられた複数の電極パッドと、保持穴に設けられ、各々が複数の電極パッドのうち対応する電極パッドと電気的に接続するとともに、第１の配線パッドと電気的に接続する複数の第２の配線パッドとを有する筐体と、を備えた。
