COAXIAL CONNECTOR

A coaxial connector includes a center contact and a board contact coupled to the center contact that is terminated to a circuit board. An outer contact has a cavity that receives the center contact and board contact. The outer contact has a separable interface end mated to a mating connector and a terminating end mounted to the circuit board. A circuit board mount is coupled to the terminating end and electrically connects the outer contact to the circuit board. A dielectric insert is received in the cavity and includes a bore that receives and holds either the center contact or the board contact. The dielectric insert has structural features extending axially along an exterior of the dielectric insert with air gaps being defined between the structural features. The structural features engage the outer contact to secure the dielectric insert in the cavity.