Coaxial connector assembly

1. A coaxial connector assembly comprising:

an outer housing holding an outer contact;

a dielectric holder received in the outer contact, the dielectric holder having a front and a cavity extending axially along the dielectric holder, the cavity being bounded by a cavity wall, the dielectric holder having an expansion slot formed in the cavity wall offset from, and proximate to, the front; and

a center contact received in the dielectric holder, the center contact having a socket at a mating end configured to receive a pin contact of a mating connector assembly, the center contact having deflectable beams at the mating end configured to deflect outward when mated with the pin contact, the center contact having flared tip ends at the distal ends of the beams, the flared tip ends being received in the expansion slot when the deflectable beams are deflected outward during mating with the pin contact.

2. The coaxial connector assembly of claim 1 , wherein a guide wall is positioned forward of the expansion slot, the guide wall having a guide opening with chamfered lead-in surfaces for directing the pin contact into the cavity.

3. The coaxial connector assembly of claim 1 , wherein the expansion slot is positioned radially outward of the cavity.

4. The coaxial connector assembly of claim 1 , wherein the expansion slot widens the cavity to receive the flared tip ends when the deflectable beams are deflected outward during mating with the pin contact.

5. The coaxial connector assembly of claim 1 , wherein the expansion slot is open through a side of the dielectric holder to an exterior of the dielectric holder.

6. The coaxial connector assembly of claim 1 , wherein the flared tip ends define a funnel into the socket.

7. The coaxial connector assembly of claim 1 , wherein the beams have mating interfaces reward of the flared tip ends, an internal diameter of the socket at the mating interfaces being narrower than a catch circle of the socket at the flared tip ends.

8. The coaxial connector assembly of claim 1 , wherein the dielectric holder includes a guide wall positioned forward of the expansion slot, the guide wall having a guide opening for directing the pin contact into the cavity, an internal diameter of the socket at the flared tip ends being wider than a diameter of the guide opening in the guide wall.

9. The coaxial connector assembly of claim 1 , wherein the dielectric holder include two expansion slots, the center contact including two deflectable beams with the flared tip ends thereof received in corresponding expansion slots.

10. The coaxial connector assembly of claim 1 , wherein the cavity has an internal cavity diameter, the flared tip ends having a deflected tip diameter, when the deflectable beams are deflected outward, that is wider than the internal cavity diameter.

11. The coaxial connector assembly of claim 10 , wherein the flared tip ends have an un-deflected tip diameter, when the deflectable beams are un-deflected, that is narrower than the internal cavity diameter.

12. A coaxial connector assembly comprising:

a coaxial cable having a center conductor, a dielectric surrounding the center conductor, a cable braid surrounding the dielectric and a jacket surrounding the cable braid;

an outer contact having a cable end terminated to the cable braid;

a dielectric holder received in the outer contact, the dielectric holder having a mating end and a cavity extending axially along the dielectric holder, the cavity being bounded by a cavity wall, the dielectric holder having an expansion slot formed in the cavity wall offset from, and proximate to, the mating end; and

a center contact received in the dielectric holder, the center contact having a cable end terminated to the center conductor of the coaxial cable, the center contact having a mating end opposite the cable end, the mating end having a socket configured to receive a pin contact of a mating connector assembly, the center contact having deflectable beams at the mating end configured to deflect outward when mated with the pin contact, the center contact having flared tip ends at the distal ends of the beams, the flared tip ends being received in the expansion slot when the deflectable beams are deflected outward during mating with the pin contact.

13. The coaxial connector assembly of claim 12 , wherein a guide wall is positioned forward of the expansion slot, the guide wall having a guide opening with chamfered lead-in surfaces for directing the pin contact into the cavity.

14. The coaxial connector assembly of claim 12 , wherein the expansion slot is positioned radially outward of the cavity.

15. The coaxial connector assembly of claim 12 , wherein the expansion slot widens the cavity to receive the flared tip ends when the deflectable beams are deflected outward during mating the pin contact.

16. The coaxial connector assembly of claim 12 , wherein the expansion slot is open through a side of the dielectric holder to an exterior of the dielectric holder.

17. The coaxial connector assembly of claim 12 , wherein the flared tip ends define a funnel into the socket.

18. The coaxial connector assembly of claim 12 , wherein the beams have mating interfaces reward of the flared tip ends, an internal diameter of the socket at the mating interfaces being narrower than a catch circle of the socket at the flared tip ends.

19. The coaxial connector assembly of claim 12 , wherein the cavity has an internal cavity diameter, the flared tip ends having a deflected tip diameter, when the deflectable beams are deflected outward, that is wider than the internal cavity diameter.

20. The coaxial connector assembly of claim 19 , wherein the flared tip ends have an un-deflected tip diameter, when the deflectable beams are un-deflected, that is narrower than the internal cavity diameter.