Pitch, position count, and what mates with it
That matters in equipment where the cable is routed through a panel or tied down – the latch keeps the connection from backing out.
Contact finish and current – what the plating buys you
In a field-service application where the connector is cycled quarterly, that is over a century of service life at the contact interface.
Mounting and board footprint
The mounting flange and keying slot give you mechanical registration on the PCB and prevent reverse insertion of the mating socket.
RoHS3 compliant.
The 2-5499206-3 gives you 16 circuits, vertical orientation, gold mating finish, and a V-0 flame rating – a step up in mating cycle life and board-space efficiency.