An electrical connector comprises a housing having a receiving passage and a conductive terminal inserted and removably mounted in the receiving passage in an insertion direction. The conductive terminal includes a body portion having a first end and a second end opposite to the first end, a clamping portion disposed at the first end of the body portion and configured to clamp a wire of a cable, and a spring locking portion disposed on the body portion and obliquely extending from the body portion in a direction away from the body portion toward the second end. The locking portion is configured to engage a bottom wall of the receiving passage. The engagement of the locking portion with the bottom wall of the receiving passage is released by driving the locking portion with an external tool inserted in the insertion direction.