INTEGRATED STRAIN RELIEF

A U-shaped retainer includes a spring configured to exert a contact force on a terminal against a mating terminal. In some examples, the U-shaped retainer includes a strain relief feature integrated with the spring that reduces an occurrence of overstress of the spring. In some examples, the U-shaped retainer includes a spring with a first spring portion and a second spring portion, and the U-shaped retainer includes at least one opening in the second spring portion.