Cart 0

F-Type Keystone Connector Module, Mfr SignaMax

SignaMax Part No.: CMK-F

  • $ 1.77 or

F-type 75-Ohm 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. In-stead, 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.

Product Features:

  • 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

Download Product Spec Sheet:



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

WIRE GAUGE: 18-22 AWG (0.64-1.07 mm) solid

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

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 x 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


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 kg-force 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-+70 †­C (-40 †­F-+158 †­F), Operation: -10 †­C-+60 †­C (+14 †­F-+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



Sold Out