An ultrasonic transducer module for an ultrasonic sensor for detection and/or examination of value documents which includes at least one piezoelectric ultrasonic transducer with electrical connecting strands, and a mounting module for holding the ultrasonic transducer for mounting on a connection support. The mounting module has conducting paths which are electrically connected to the connecting strands of the ultrasonic transducer and which have contact areas which are so configured that the ultrasonic transducer module is placeable for mounting onto a surface of the connection support on which there are located contact areas complementary to the conducting path contact areas, with the contact areas and the complementary contact areas being solderable to each other.