3M™ .050 in. 4-Wall, Tripolarized Header, Straight, 100 Contacts, 81050-660203
.050" x .100", Ejector/Latch System long (installed), Contact tail solder tail for .062" [1.57] PC board, Board mounting options press fit posts both ends;TS-0261 has been discontinued and the parts listed on it have been consolidated onto TS-0253.