A terminal used in an electronic circuit unit with a circuit board including a plurality of connection conductors, a housing and a plurality of terminals respectively provided on ends of a plurality of wires includes a wire connecting portion to be connected to an end portion of the wire and a board connecting portion to be connected to the connection conductor. The board connecting portion includes a resiliently deformable first resilient contact piece having a first contact portion to be resiliently brought into contact with the connection conductor and a resiliently deformable second resilient contact piece having a second contact portion to be resiliently brought into contact with the connection conductor common to the connection conductor, with which the first contact portion is brought into contact. The first and second resilient contact pieces are resiliently deformable independently of each other and shaped to have mutually different natural vibration frequencies.