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.

SPECIFICATIONS

• 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

18-22 AWG (0.64-1.07 mm) solid

• ELECTRICAL

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

• 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 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

Part Number

Description

CMK-F-BK

F-Type Keystone Connector Module, 1 GHz, Black

CMK-F-GY

F-Type Keystone Connector Module, 1 GHz, Gray

CMK-F-WH

F-Type Keystone Connector Module, 1 GHz, White

CMK-F3

F-Type Keystone Connector Module, 3 GHz, Light Ivory

CMK-F3-BK

F-Type Keystone Connector Module, 3 GHz, Black

CMK-F3-GY

F-Type Keystone Connector Module, 3 GHz, Gray

CMK-F3-WH

F-Type Keystone Connector Module, 3 GHz, White