The TE Connectivity 414244-4 is an SMB jack with a male pin centre contact, 75 Ohm impedance, and a 4 GHz maximum frequency — a compact RF interconnect for board-level coaxial signal paths where the bayonet-style SMB snap-on coupling saves panel space over a threaded SMA. The brass body carries a tin finish, the centre contact is gold-plated brass, and the dielectric is PTFE.
The 75 Ohm impedance is the defining spec — this is not a 50 Ohm SMB, so it won't match standard RF test cables or 50 Ohm system impedance without a pad or mismatch. The 4 GHz bandwidth covers most video and lower microwave links; above that the insertion loss climbs past 0.3 dB. Through-hole mounting with solder termination means you need a PCB with plated holes for the centre pin and shield legs — no surface-mount reflow here.
No official replacement order code is on record. If you're designing a new board, look at current TE SMB jacks in 75 Ohm with similar through-hole footprint; the pitch and shield pattern will need to match your existing layout, so pull the mechanical drawing before swapping.