F-Type Plug for RG-6 Drop Cable — 75 Ohm, 1 GHz Ceiling
The 221539-7: The 75 Ohm impedance matches the standard for CATV, satellite, and broadband video distribution systems, where the characteristic impedance of the cable and connector must align to minimize signal reflection. Rated to 1 GHz maximum frequency, this plug covers the full sub-GHz spectrum used by analog and digital video signals, DOCSIS cable modems, and satellite IF feeds up to L-band. The 500 V voltage rating accommodates the power-over-coax schemes used in line-powered amplifiers and distribution nodes.
Obsolete — Sourcing Through Surplus and Broker Channels
For BOM lines that still specify this exact order code, the only sourcing path is through independent distributor surplus inventory or broker channels.
Cable Prep and Termination — Crimp Shield, Solder or Crimp Center
The shield termination is crimp-style, which means the braid and foil of the RG-6 cable are captured by a crimp ferrule that is compressed over the cable jacket. The center pin is typically soldered or crimped to the center conductor, depending on the specific terminal supplied with the plug. For field termination, use a hex crimp tool sized for RG-6 — the common 0.100-inch hex die for the ferrule and a separate die for the center pin if crimp-type. The threaded coupling nut accepts standard F-type wrenching tools; torque to hand-tight plus a quarter turn with a wrench, but do not overtighten — the brass threads strip easily.
What to Check Before Specifying a Replacement
75 Ohm impedance matches CATV and satellite systems. RG-6 cable group — the center pin and ferrule are sized for RG-6.