Quick-disconnect receptacle for 0.187" tabs
The 2-520403-2 is a fully insulated female quick-disconnect receptacle in TE's Ultra-Fast Plus series, accepting 0.187" (4.75mm) wide tabs with a thickness of 0.032" (0.81mm). It crimps onto 18-22 AWG wire and carries a tin-plated brass contact — the tin finish suits moderate-cycle applications where cost per termination is the primary driver. The red insulation colour identifies the wire range at a glance on the assembly bench.
Tab width and thickness selection
Within the Ultra-Fast Plus family the 2-520403-2 mates with 0.187" wide tabs at 0.032" thickness — the same width is offered with a 0.020" tab (2-520401-2) for thinner male blades, and the 0.250" width (2-520405-2, 2-520407-2) serves heavier-duty circuits. All four share the same 18-22 AWG range, tin-plated brass contact, and fully insulated housing — the choice reduces to the tab dimensions on the mating male quick-disconnect.