SRFS Teleinfra

Economical LF 620

Economical LF 620

Economical LF 620 is a reliable low-loss RF coaxial cable designed for efficient signal transmission in wireless communication, telecom, broadcasting, and RF applications. It offers a practical balance of performance, durability, and cost-effectiveness, making it suitable for installations where dependable RF connectivity is required. The cable is designed to provide stable electrical performance with low signal attenuation and good shielding against external interference. Economical LF 620 can be used in antenna systems, base stations, communication equipment, test setups, and other high-frequency applications requiring consistent and reliable RF signal transmission.

Configuration

No. Construction Size (mm) Materials
1 Center Conductor 1.57 Solid Silver-plated copper
2 Dielectric 4.72 Low density PTFE
3 Outer Conductor 4.96 Silver-plated flat copper ribbon braid
4 Interlayer 5.10 Aluminum foil wrap
5 Outer Shield 5.55 Silver-plated copper wire braid
6 Jacket 6.20 FEP

Electrical

Frequency DC-18 GHz
Impedance 50 Ω
Velocity of Propagation 76%
Shielding Effectiveness >90 dB
Withstanding Voltage 2500 V
Mechanical Phase Stability* <±5°
Amplitude Stability vs Shaking <±0.15 dB
* Wrapped 360° around a 62mm radius mandrel.

Attenuation

Frequency MHz 400 500 1000 2400 3000 6000 8000 10000 12400 16000 18000
dB/100 Meter 13.9 15.6 22.2 34.9 39.2 56.4 65.8 74.2 83.3 95.8 102.2
Avg. Power kW 1.490 1.330 0.933 0.594 0.528 0.367 0.315 0.279 0.248 0.216 0.202
K1 = 0.682743 K2 = 0.000591

Mechanical & Environmental

Min. Bending Radius Static 31mm
Min. Bending Radius Repeated 62mm
Weight 85g/m
Temperature (Operation) -50~150 °C
Temperature (Storage) -60~160 °C