SRFS Teleinfra

1/4” Feeder Cable

1/4” Feeder Cable

The 1/4” Feeder Cable is a reliable RF coaxial cable designed for efficient signal transmission in wireless communication, telecom, and RF systems. Its compact construction supports easy routing and installation in confined spaces while maintaining stable electrical performance and signal integrity. The cable provides dependable shielding and low signal attenuation for consistent RF connectivity. It is suitable for antenna assemblies, base stations, wireless networks, RF equipment, test and measurement systems, and communication infrastructure. With a practical combination of flexibility, durability, and performance, the 1/4” Feeder Cable is an effective solution for professional high-frequency communication applications.

Electrical Specifcations

Impedance (Ω) 50±1
Capacitance (PF/m) 80
Peak Power (KW) 19
Propagation Velocity (%) 83
RF Peak Voltage (KV) 1.13
Insulation Resistance (MΩ·km) >5×10³
Insulation Voltage (KV rms) 2.5
Screening Attenuation (dB) >>120
Inner Conductor DC Resistance (Ω/km) 2.85
Outer Conductor DC Resistance (Ω/km) 3.5
Screening Attenuation (dB) >>120
Jacket Spark (K Vrms) 5
Cut Off Frequency (GHz) 12.5

Mechanical Specifcations

Min Single Bending Radius (mm) Min 50
Repeated Bending Radius (mm) 125
No. of Bends 15
Tensile Strength (kg) 110
Recommended Temperature (°C) PE Jacket — Store: -55~+85°C
Installation: 20~+60°C
Operation: -55~+85°C

Fire Retardant PE Jacket — Store: -55~+85°C
Installation: 20~+60°C
Operation: -55~+85°C

Material & Finish

Inner Conductor Copper clad aluminum Nom. 4.8 ± 0.1 mm
Dielectric Foamed Polyethylene Nom. 12.2 ± 0.2 mm
Outer Conductor Corrugated Aluminum tube Nom. 13.7 ± 0.20 mm
Jacket Standard black PE or Flame Retardant/Halogen-Free black PE Nom. 15.8 ± 0.30 mm