The TE Connectivity 6450140-6 is a 26-position MULTI-BEAM XL receptacle that mixes 24 signal contacts with 2 power blade sockets in a single 4-row housing. It's designed for backplane power distribution — the kind of interconnect that carries a bus voltage and a bunch of logic lines through the same mated pair.
Board Lock and Guide Pin — Why They Matter
This receptacle carries a board lock and a guide pin. The board lock holds the connector in place through the wave solder process — without it, the part can float off the pads as the solder wets. The guide pin aligns the daughtercard during blind mating, which is the difference between a clean mate and bent pins on a backplane. If your assembly doesn't have alignment hardware on the card edge, this connector brings its own.
Through-hole solder termination — the signal pins and power blades go through the board and get wave-soldered. Operating temperature range is -20°C to 105°C, so it's fine for industrial cabinets and telecom racks but not for under-hood automotive.