JAE’s 0.4 mm pitch WP Series board to board connectors have an independent two-point contact structure to resist twisting stress. It has a clear click sound and feeling when mated in order to improve workability and prevent half mating on assembly line. The high extraction force allows for reliable mating under vibration and shock. The WP Series has a nickel barrier in the contact plating in order to prevent solder wicking, and it is also a RoHS compliant product.