F-Type Connector Modules

CMK-F

 

 

75-Ohm F-type radio-frequency connectors are used for connecting Series 59, Series 6, and Series 11 coaxial cable to video, CATV, and security cameras. The most widely used connector for residential cable service. F-type connectors do not have center pins. Instead, they use the solid center conductor of the cable as a center pin. For this reason, F-type connectors cannot be used with cables that have a stranded center conductor. Usage of the cable center conductor instead of a pin makes F-type comparatively inexpensive.

F-Type feed-thru modules are compatible with all Signamax keystone panels, faceplates, and surface-mount boxes. Connectors are 75 Ohm and rated for 1- or 3-GHz performance.

 

 

  • 1- and 3-GHz versions available
  • 75 Ohm
  • Bronze shell and terminal
  • 3/8-32 thread
  • Compatible with all Signamax keystone panels, faceplates, and surface-mount boxes
  • Easy connection in the field

 

 

  • TRANSMISSION PERFORMANCE

CMK-F: up to 1 MHz
CMK-F3: up to 3 MHz

  • TRANSMISSION MEDIA

Coaxial, 75 Ohm (RG6/U, RG-58/U)

  • WIRE GAUGE

18 AWG–22 AWG (0.64 mm–1.07 mm) solid

  • ELECTRICAL

Frequency range:
CMK-F: 1 GHz DC
CMK-F3: 3 GHz DC

Characteristic impedance: 75 Ohm

Insertion loss: <0.3 dB at 1 GHz
CMK-F: <0.3 dB
CMK-F3: <0.2 dB

Return loss:
CMK-F3: >30 dB

Contact resistance: <4 mOhm
Insulation resistance: min 500 MOhm at 100 Vdc
Inductance: min 500 nH
Capacitance: min 2 × 1.5 nF
Operational voltage: 250 Vdc
Test voltage: 750 Vdc for 1 min
Peak voltage rating: 500 V
Dielectric withstanding voltage: 1 500 Vrms
Feed-through current: max 10 A

  • CONSTRUCTION

Housing: high impact thermoplastic, UL94V-0 fire-retardant
Shell: brass, nickel plated

Seizing pin:
CMK-F: bronze alloy, tin-plated
CMK-F3: 360-degree beryllium bronze, gold-plated

Insulation:
CMK-F: low-density polyethylene (LDPE)
CMK-F3: nylon

Nut: iron-plated with nickel over copper

  • MECHANICAL

Mating cycles: min 500

Holding force:
>160 g (initial)
>120 g (after insertion)

Interface dimensions: similar to MIL-C-39012
Housing shall support 2.2 kgf minimum applied from either direction

  • FOOTPRINT

Standard keystone footprint

  • MOUNTING DIMENSIONS

D:30.0 mm H:19.7 mm W:16.5 mm
D:1.18 in H:0.77 in W:0.65 in

  • ENVIRONMENTAL CONDITIONS

Storage: -40 °C to +70 °C (-40 °F to +158 °F)
Operation: -10 °C to +60 °C (+14 °F to +140 °F)
RH (operation): max non-condensing 93 %
Vibration, shock, and temperature cycling in accordance with MIL-STD-1344

  • COMPLIANCE

ANSI/SCTE 02, IEC 60169-24, UL 94V-0

  • APPLICATIONS

Over-the-air terrestrial television, cable television, satellite television, cable modems

  • WARRANTY

5-year limited component warranty

 

 

Download Specifications (PDF 97Kb) Revised 05.01.2009

Download Drawing (PDF 66Kb) Revised 05.01.2009

 

 

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