PC pin receptacle terminals or socket connectors are female gendered, single conductor devices typically used on circuit boards. They are defined by the tail type (clip, crimp, no tail, slotted, solder cup, standard, turret, wire wrap), their termination (crimp, press-fit, solder, stackable, surface mount, swage, wire wrap), and their pin diameter or size acceptance. Other parameters include overall length, mounting hole diameter, socket depth, contact finish, etc.
