XM3L-N D-Sub Connector Sockets Omron Electronics XM3L-N D-Sub Connector Sockets are designed to mount on the back surface of the circuit boards. These SMT sockets are available in 9 and 25 contact variants and are also compatible with reflow mounting. The XM3L-N D-sub connectors feature circuit board positioning bosses that facilitate accurate mounting on circuit boards. These SMT plugs are RoHS compliant and operate at -55°C to 105°C temperature range. Omron Electronics XM3L-N D-Sub sockets offer a steel shell with nickel plating and an optional anchor variant.