The TE Connectivity 3-350566-1 is a Mini Amp-In through-board locking terminal for 18-22 AWG wire. It is a single-wire termination that passes through a PCB hole and locks in place before soldering — the locking feature holds the wire in position during assembly, preventing the terminal from backing out during wave solder or hand-solder operations. The tin-plated phosphor bronze contact suits low-cycle, cost-sensitive applications where repeated mating is not required. Typical use is in appliance, HVAC, and automotive interior harnesses where the terminal is soldered to the board and the wire is crimped on the other end.
Wire Fit and PCB Hole Match
The 18-22 AWG range covers common wire sizes. The insulation diameter acceptance is 0.060" to 0.110" (1.52 mm to 2.79 mm). The PCB hole diameter spec is 0.072" to 0.077" (1.83 mm to 1.96 mm).