The 53375-0310 is a 3-way 1-row vertical 2.5mm pitch Mini-Lock? Wire-to-board Header with tin-plated contacts. It mates with 51103, 51102 and 51163 series Mini-Lock? wire-to-board and wire-to-wire crimp terminals. The 53375 series PCB header comes with natural color polyester resin, friction and positive lock. Mini-Lock is fully shrouded to protect contacts and includes high guide walls to facilitate mating. This header is ideal for signal and wire-to-board applications.