The PQ2A-4FPE-YGFC is part of the Prolight series of connectors developed by Molex, a manufacturer of electronic components. It is a 3-position, polarizing-style rectangular connector that is used to enable electrical connections between two points on a printed circuit board (PCB). This part has a simple plug-and-play design that makes it ideal for applications where frequent disconnect and reconnect may be necessary. It is a low-profile connector that can easily be inserted and removed from the board, reducing the risk of damage to the board during regular use. The part is also designed with a latch that provides secure and reliable mating retention, preventing accidental disengagement of the connectors. The connector is made with a UL94V-0 rated polyester housing that is molded over pre-loaded, tin-plated phosphor bronze contacts, providing greater protection against environmental wear and corrosion.