An electrical connector (100) for connecting a sheet-like connection member includes an insulating housing (1) provided with a plurality of conductive terminals (2, 3) and a pair of retaining members. The housing defines a pair of slots (15) each with an upper groove (153) and a lower groove (154) at a front portion thereof. The retaining members (4) are embedded in the slots (15), and each comprises an upper arm (441) retained in the upper groove (153), a lower arm (442) received in the lower groove (154) and a soldering portion (42) extending from a bottom edge thereof. The lower groove (154) runs though the housing in an insertion direction of the retaining members (4).