50 ohm 1.13 mm coaxial cable specifications

　　A 50-ohm 1.13 mm coaxial cable is a type of radio-frequency (RF) cable commonly used for transmitting high-frequency signals. Here are its typical specifications:

　　Physical StructureInner Conductor: Usually made of silver-plated annealed copper wire with a diameter of 0.24 mm (equivalent to #32 AWG), and it is often stranded as 7/0.08 (meaning 7 strands of 0.08 mm diameter wire).

　　Dielectric: Made of FEP (Fluorinated Ethylene Propylene) with a diameter of 0.68 mm.

　　Outer Conductor: Consists of tinned annealed copper wire with a diameter of 0.88 mm.

　　Jacket: Made of FEP, with a diameter of 1.13 mm, and the common colors are black or gray.

　　Electrical Characteristics

　　Impedance: The characteristic impedance is 50 ohms, which is crucial for minimizing signal reflection and ensuring efficient power transfer in RF circuits.

　　Capacitance: Approximately 95.6 pF/m, which affects the signal propagation speed and phase characteristics of the cable.

　　Velocity of Propagation: About 70% of the speed of light in a vacuum, indicating how fast the electrical signal travels through the cable.

　　Dielectric Strength: Can withstand an alternating current of 500V for 1 minute without breakdown, ensuring the cable's insulation performance.

　　Attenuation: The attenuation varies with frequency. For example, it is 2.0 dB/m at 1 GHz, 3.6 dB/m at 3 GHz, and 5.2 dB/m at 6 GHz.

　　Maximum Operating Voltage: Generally, it can reach 1000V (RMS), indicating the highest voltage the cable can safely handle.

　　Maximum Operating Frequency: Can typically reach up to 6000 MHz, making it suitable for high-frequency applications.

　　Minimum Bend Radius: Usually around 4 mm, which means the cable should not be bent with a radius smaller than this value to avoid damaging the internal structure and affecting performance.

　　Operating Temperature Range: Typically ranges from -55°C to 200°C, allowing it to be used in a wide variety of environmental conditions.