Since the 50 's, the SMD connector is now beginning to be some use. However, SMT connector used is only recently started, and has been progressively more manufacturers to pay attention to. Product factors of this situation may be due to the use of SMT connector is facing skills challenge, transport users are not SMT can be useful to save road space. As time develops, connectors have now become the majority rarely perforation of the rest of the parts on the PC Board. Product developers have found that using the product of reduced hybrid welding skills (on the same circuit board used with SMD and perforated parts), all using SMT skills why manufacturers improve product power and reduce costs. Engineers found that the SMT can help manufacturers make full use to double-sided circuit boards and then reach the narrow road area, cutting product programs to effect.