A connector terminal includes a terminal connection portion, a wire connection portion, and a flange portion. The connector housing includes a wire connection portion accommodation portion that can accommodate the wire connection potion and a terminal connection portion accommodation portion that can accommodate the terminal connection portion. A rear holder covers an opening of the connector housing, and a part of the wire connection portion is penetratingly inserted into a through-hole of the rear holder to form an accommodation space in which a pipe-shaped spacer or a spring, into which the wire connection portion is penetratingly inserted, can be disposed.