Wiring not included. JST RCY Series 2.5mm Plug Housing for Pin Contact. RCY series 2.5mm 2 way wire to wire plug housing for use with RCY pin contact. This RCY plug housing is made from red PA 66 UL94V-2 and has an internal locking feature. When mated, this RCY connector is just 23.3mm in length and 4mm in width making it ideal for use in compact signal and power supply circuits in electrical equipment. For mating RCY socket housing see stock number ; 688-1448 688-1448