JST VT 11.88mm Housing, Header and Contact. The VT range of 11.88mm pitch Wire-to- Board 12A connectors from JST have arm locking and mis-insertion features. The Headers of the VT range have board locks for 1.6 mm thick PCBs for increased board retention. Cable size for the VT Contact is 20-16 AWG with an insulation diameter of 2.7 ∼ 3.9 mm. For a suitable Hand Crimp tool for the VT Contact see stock number ; 819-2700 819-2700 .