2.5mm Board-In SCN Connector Contacts The solder tails of these 2.5 mm pitch Board-In SCN connector contacts are designed to give easy insertion and secure locking into the PCB. These Board-In 2.5 mm pitch SCN contacts are Type B where the solder tail is joined at the tip to prevent breaking and for easy of handling. The Type B contact for these 2.5 mm pitch SCN Board-In connectors are for use with 1.2 mm or 1.6 mm thick PCBs and have a 0.9 to 1.7 mm cable insulation outside diameter capacity..