From polarizing plugs to terminal position assurance, our range of PCB connector accessories will suit all customers; needs to help complete your connector projects. PCB headers are a type of electrical connector. Typically, one side of the header is comprised of a series of pins that are soldered to the printed circuit board (PCB) surface. What can PCB Connector accessories be used for? Our extensive range of PCB connector accessories can be used for a range of different applications, this range includes products such as latch locking, polarizing plugs, insertion bridges and much more;