An electrical connector (100) includes an insulative housing (1) and a number of terminals made from a same carrier strip. The terminals include a number of conductive terminals (2), a first and second detecting terminals (4, 3) inserted in the insulative housing in a juxtaposed manner. The conductive terminals and the first detecting terminal each has a front bent constituting a respective contact portion (21, 41). The contact portions of the conductive terminals and the contact portion of the first detecting terminal have a substantially same configuration. The first detecting terminal has an engaging portion (44) spaced from the second detecting terminal and contactable with the second detecting terminal.