US Patent 10211558 Low insertion force tab receptacle

A receptacle terminal for receipt of a mating terminal therein. The receptacle terminal has a contact portion including a bottom wall and resilient contact arms which extend from the bottom wall. The resilient contact arms have resilient contact sections and mating terminal engagement members. The mating terminal engagement members have a projection receiving opening. A spring arm extends from the bottom wall toward the mating terminal engagement members. The spring arm has a projection which extends from the spring arm to create a raised area on an inner surface of the spring arm to engage the mating terminal. Prior to the receipt of the mating terminal, the projection of the spring arm is positioned in the projection receiving opening of the mating terminal engagement members, allowing the portions of the spring arm to be positioned proximate the mating terminal engagement members.