This document introduces the 3900 Series product from 3M Interconnect Solutions Division. It is a .100″ × .100″ PCB two-row connector that fits standard .100 inch × .100 inch header layout. It uses less board area than a 4-row design. The product features glass-filled polyester (PBT) as the insulation material with UL 94V-0 flammability rating. It has a current rating of 1A and can withstand temperatures from -55°C to +105°C. The document also provides supplier query information.