FCI Basics 1.25mm wire-to-board connector system is designed for a wide variety of applications in Industrial, Automotive, and Consumer markets. The comprehensive range consists of terminals, crimp housings, and PCB headers in straight and RA, SMT, and through-hole configurations. It is available in 2 to 15 circuits in a single row. 1.25mm WTB solution conforms to the EU Industry Safety Standard.