Lifetime Connectivity

SCF12-75J
1/2" CELLFLEX® Superflexible Foam-Dielectric Coaxial Cable

Rev : A | Rev date : 08 Jan 2026

CELLFLEX® 1/2" superflexible cable

Features / Benefits

  • Ultra Low Attenuation
    The reduced attenuation of CELLFLEX® coaxial cable results in extremly efficient signal transfer in your RF
    system, especially at high frequencies.
  • Complete Shielding
    The solid outer conductor of CELLFLEX® coaxial cable creates a continuous RFI/EMI shield that minimizes
    system interference.
  • Low VSWR
    Special low VSWR versions of CELLFLEX® coaxial cables contribute to low system noise.
  • Outstanding Intermodulation Performance
    CELLFLEX® coaxial cable's solid inner and outer conductors virtually eliminate intermods. Intermodulation
    performance is also confirmed with state-of-the-art equipment at the RFS factory.
  • High Power Rating
    Due to their low attenuation, outstanding heat transfer properties and temperature stabilized dielectric
    materials, CELLFLEX® cable provides safe long term operating life at high transmit power levels.
  • Wide Range of Application
    Typical areas of application are: feedlines for broadcast and terrestrial microwave antennas, wireless
    cellular, PCS and ESMR base stations, cabling of antenna arrays, and radio equipment interconnects.
RFS-CELLFLEX-SCF12.png
Structure
Cable Type SCF
Size 1/2"
Jacket Option Outdoor
Inner Conductor Material Copper Wire
Dielectric Material Foam Polyethylen
Outer Conductor Material Corrugated Copper
Jacket Material Black Polyethylen
Mechanical Specification
Inner Conductor Diameter 2.1mm (0.083in)
Dielectric Diameter 8.6mm (0.339in)
Outer Conductor Diameter 12.2mm (0.48in)
Jacket Diameter 15mm (0.591in)
Cable Weight 0.23kg/m (0.155lb/ft)
Min. Bending Radius, Repeated Bends 30mm (1.181in)
Bending Moment 3.6Nm (2.657ft-lbf)
Tensile Strength 520N (116.901lb)
Recommended Clamp Spacing 0.3m (0.984ft)
Electrical Specification
Impedance 75 ±1 Ω
Max. Operating Frequency 13 GHz
Velocity 81 %
Capacitance 55pF/m (16.764pF/ft)
Peak Power Rating 12.1 kW
RF Peak Voltage 1.35 kV
Jacket Spark 5 kV
DC-Resistance Inner Conductor 5.13Ω/km (1.564Ω/kft)
DC-Resistance Outer Conductor 4.95Ω/km (1.509Ω/kft)
Return Loss (VSWR) Performance Standard 20dB (1.222) / Premium 23/24dB (1.152/1.135) on specified frequencies.
Testing and Environmental
Fire Performance Halogen Free
Compliance RoHS 2011/65/EU
China RoHS SJ/T 11364-2006
REACH (EC 1907/2006)
IEC 60754-1/-2 Halogen Acid Gases
Installation Temperature, Minimum -40°C (-40°F)
Installation Temperature, Maximum 60°C (140°F)
Storage Temperature, Minimum -70°C (-94°F)
Storage Temperature, Maximum 85°C (185°F)
Operation Temperature, Minimum -50°C (-58°F)
Operation Temperature, Maximum 85°C (185°F)
ATTENUATION AND POWER RATING
Frequency, MHz dB per 100m dB per 100ft Power, kW
75 2.72 0.83 2.50
100 3.16 0.96 2.15
150 3.90 1.19 1.74
200 4.53 1.38 1.50
450 6.98 2.13 0.97
700 8.87 2.70 0.77
800 9.55 2.91 0.71
870 10.0 3.05 0.68
900 10.19 3.11 0.67
960 10.56 3.22 0.64
1800 15.04 4.58 0.45
2000 15.98 4.87 0.43
2200 16.88 5.15 0.40
2400 17.75 5.41 0.38
2600 18.6 5.67 0.37
2700 19.01 5.80 0.36
3000 20.23 6.17 0.34
3500 22.16 6.76 0.31
4000 24.00 7.32 0.28
5000 27.47 8.37 0.25
6000 30.72 9.36 0.22
Note "Standard Conditions:
For attenuation: VSWR 1.0, cable temperature 20°C (68°F).
For average power: VSWR 1.0, ambient temperature 40°C (104°F), inner conductor temperature 100°C (212°F). No solar loading."