SRFS Teleinfra

SMA Male to SMA Male Cable Assembly 1m

Ultra-Flexible Phase Stable Low Loss Cable FU520

The Ultra-Flexible Phase Stable Low Loss Cable FU520 is a high-performance RF cable engineered for demanding test, measurement, and microwave applications. Its ultra-flexible construction enables easy routing and repeated movement while maintaining dependable electrical performance. The phase-stable design helps minimize phase changes during bending, supporting accurate and consistent measurements. With low signal loss and reliable shielding, FU520 provides efficient high-frequency signal transmission across demanding RF systems. It is suitable for network analyzers, antenna testing, laboratory equipment, communication systems, RF modules, and other applications requiring flexibility, phase stability, low attenuation, and reliable signal integrity.

Cable Construction

No. Construction Size (mm) Materials
1 Center Conductor 1.02 Stranded silver plated copper
2 Dielectric 3.03 LD PTFE wrapping
3 Outer Conductor 3.22 Silver plated copper strip wrapping
4 Interlayer 3.47 PTFE
5 Outer Shield 4.05 Silver plated copper wire braiding
6 Jacket 5.20 PUR or FEP

Electrical

Frequency DC-26.5 GHz
Impedance 50 Ω
Velocity of Propagation 76%
Shielding Effectiveness >90 dB
Withstanding Voltage 2000 V
*Mechanical Phase Stability <±4°@18GHz,
Amplitude Stability vs Shaking <±0.1 dB
* Wrapped 360° around a 52mm radius mandrel.

Mechanical & Environmental

Min. Bending Radius Static 18mm
Min. Bending Radius Repeated 50mm
Weight 55g/m
Operation Temp (PUR Jacket) -50~85 °C
Operation Temp (FEP Jacket) -50~150 °C

Bulk Cable Attenuation

Frequency MHz 300 1000 2000 4000 6000 8000 10000 12000 14000 16000 18000 26500
dB/100 Meter 20.4 38.5 55.9 82.0 103.2 121.9 139.0 154.9 169.9 184.2 198.0 252.1
Avg. Power kW 0.830 0.441 0.304 0.207 0.164 0.139 0.122 0.110 0.100 0.092 0.086 0.067