US Patent 10069255 Coaxial connector having accidental mating prevention

The invention is directed to a coaxial connector jack for the interconnection to a corresponding connector plug. The connector jack comprises an inner conductor extending in an axial direction and an outer conductor in the form of a slotted contact sleeve arranged coaxial with respect to the inner conductor. Furthermore the coaxial connector comprises an insulator positioning the inner conductor with respect to the outer conductor and a spacer arranged inside the insulator extending along an inner side wall of the slotted contact sleeve. The spacer extends in the axial direction at least to the same axial position as the slotted contact sleeve or exceeds it.