1-188275-2 is a female-on-board surface mount device (SMD) connector from the TE Connectivity Micro-MaTch connector family, designed for wire-to-board and board-to-board interconnections with 1.27 mm contact spacing. The connector features tin-plated contacts with a gas-tight connection design that incorporates an additional positioning spring in the female part to absorb relative movements caused by vibrations and thermal expansion, effectively preventing fretting corrosion. The contact spring system compensates for positional tolerances and provides the high contact force required for reliable tin-plated interconnections. This connector is available in multiple position sizes (4 to 24 positions) and is supplied on vacuum pick-and-place tape for automated assembly. Common applications include production and material handling equipment, control units, robots, motors, automotive systems (car radios, navigation systems, dashboard systems), base stations, set-top boxes, and audio equipment.