Positronic WD and WDD series environmental D-Subminiature connectors are enhanced to provide increased performance at a lower cost. The connectors assist with applications requiring a sealed I/O connector interface. The legacy design used sealants to accomplish environmental protection; the unibody design eliminates the need for sealants, which allows higher performance levels and lower manufacturing costs. The connectors operate from -40 to +125°C. Nominal current rating with size 20 contacts is 7.5 A and with size 22 contacts is 5 A. The connectors meet IP67 environmental testing requirements and will also pass a 1 G ohm minimum insulation resistance test and a 1000 V rms voltage proof test.