Ultra-Fast 0.187" receptacle
The 2-520193-2 is the 0.187" (4.75mm) tab-width member of TE's Ultra-Fast fully insulated quick disconnect receptacle line, accepting 18-22 AWG wire. Tin-plated brass contact, crimp termination, free-hanging in-line mounting — mates with standard 0.187" male tabs of matching thickness.
Tab width & thickness selection
Within the Ultra-Fast 0.187" female receptacles, the 2-520193-2 uses a 0.032" (0.81mm) tab thickness, while the 2-520181-2 uses a thinner 0.020" (0.51mm) tab — match the tab thickness to the male tab's stamped thickness for a secure crimp fit. For a wider 0.250" (6.35mm) tab interface on the same 18-22 AWG wire range and overall length, the 2-520183-2 is the sibling in the series.