Board-to-cable/wire header with locking ramp
The 643430-1 is a 15-position, 3-row header from TE's Universal MATE-N-LOK series, designed for board-to-cable/wire connections. It uses a 0.250" (6.35mm) pitch and mates with the corresponding receptacle via a locking ramp that holds the pair together under vibration. Through-hole solder termination with tin-plated phosphor bronze contacts — the tin finish suits moderate mating-cycle applications where cost matters more than cycle life. Rated for -40°C to 105°C operation with a UL94 V-0 nylon housing, so it handles industrial cabinet and outdoor telecom enclosure environments without flame-rating concerns.