A dissipative insert provided within an electrical connector having multiple connector pins and an outer conductive housing where the insert is configured around the pins within the housing and provides structural integrity thereto and prevents a short circuit between the pins and between the pins and the housing. The insert is comprised of a mixture of a polymer and a conductive material that causes the insert to have a volume resistivity in the range of 1×106-1×1010 ohm-cm. In one embodiment, the conductive material is carbon nanotubes.