The TE Connectivity 553912-1 is a 50-position receptacle from the CHAMP.085 series, terminated via IDC for mass-termination to 0.085" pitch ribbon cable. A built-in backshell and cable clamp provide strain relief at the cable exit, which matters when the 50-conductor ribbon sees flex or routing through a cabinet.
Termination and Mating — What to Match
IDC termination means the connector pierces the ribbon cable insulation in one press stroke — no wire stripping, no individual crimp. The pitch of the CHAMP.085 series is 0.085" (2.16 mm), and the 50 positions match a 50-conductor ribbon. Watch pin-one alignment: the housing/shell flange uses 4-40 threaded inserts for jack-screw retention, which also keys the orientation. The mating half is a CHAMP.085 series male header (shroud contacts) with the same 50-position, 2-row layout. The backshell and cable clamp on this receptacle are integral — you don't add them separately, they come on the part.
The product status is Active.