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BM250 Tight Bend Triple-Shielding Flexible RF Cable
The Tight Bend Triple-Shielding Flexible Cable BM250 is a high-performance RF cable designed for applications requiring excellent flexibility, reliable shielding, and stable signal transmission. Its tight-bend construction allows easy routing through compact spaces and complex equipment layouts without compromising performance. The triple-shielding structure provides enhanced protection against electromagnetic interference and unwanted signal leakage, supporting clean and dependable RF transmission. BM250 is suitable for wireless communication systems, RF test equipment, laboratory instruments, antennas, telecom infrastructure, and high-frequency applications. Its robust construction and flexible design make it an ideal choice for demanding professional RF and microwave environments.
Cable Construction
| No. | Construction | Size (mm) | Materials |
|---|---|---|---|
| 1 | Center conductor | 0.51 | Silver plated copper |
| 2 | Dielectric | 1.65 | Solid PTFE |
| 3 | Outer conductor | 1.82 | Silver plated copper wire braiding |
| 4 | Middle layer | 1.90 | Aluminum foil |
| 5 | Outer shield | 2.12 | Stainless steel wire |
| 6 | Jacket | 2.50 | FEP |
Electrical
| Frequency | DC-50 GHz |
| Impedance | 50 Ω |
| Velocity of Propagation | 70% |
| Shielding Effectiveness | >90 dB |
| Withstanding Voltage | 500 V |
| *Mechanical Phase Stability | <±15° @ 50GHz |
| Amplitude Stability vs Shaking | <±0.15 dB |
| * Wrapped 360° around a 25 mm radius mandrel. | |
Mechanical & Environmental
| Min. Bending Radius Static 360° | 10mm |
| Min. Bending Radius Repeated | 25mm |
| Weight | 17g/m |
| Temperature (Operation) | -50~125 °C |
| Temperature (Storage) | -65~125 °C |
Bulk Cable Attenuation
| Frequency MHz | 300 | 1000 | 2000 | 4000 | 6000 | 10000 | 12000 | 14000 | 18000 | 26500 | 40000 | 50000 |
| dB/100 Meter | 45.1 | 82.9 | 118.0 | 168.4 | 207.7 | 271.1 | 298.3 | 323.6 | 369.7 | 454.6 | 568.2 | 642.1 |
| Avg. Power kW | 0.500 | 0.272 | 0.191 | 0.134 | 0.109 | 0.083 | 0.076 | 0.070 | 0.061 | 0.050 | 0.040 | 0.035 |
| Attenuation at any frequency = [2.580809×SQRT(FMHz)] + [0.0013×FMHz] | ||||||||||||