MTTF Series
Economical, Low-Loss Flexible Coaxial Cables
The MTTF series provides economical flexible coaxial cables with low-density PTFE tape dielectric and aluminium tape outer conductor. The catalogue positions these products for power-sensitive RF interconnection, base stations and wireless systems.
Choose your MTTF cable model
The models differ in diameter, published operating limit, insertion loss and mechanical dimensions.
MTTF-280
Published operating frequency
2.6 mm OD · cutoff 67 GHz
0.6 kW peak power (catalogue)
Enquire about MTTF-280MTTF-350
Published operating frequency
3.5 mm OD · cutoff 40 GHz
1.6 kW peak power (catalogue)
Enquire about MTTF-350MTTF-500
Published operating frequency
5.2 mm OD · cutoff 25 GHz
5.6 kW peak power (catalogue)
Enquire about MTTF-500MTTF-750
Published operating frequency
7.8 mm OD · cutoff 16 GHz
10 kW peak power (catalogue)
Enquire about MTTF-750Electrical performance
Model-specific specifications as recorded in the supplied MTT cable catalogue. A cutoff-frequency figure does not replace the published operating-frequency limit.
| Parameter | MTTF-280 | MTTF-350 | MTTF-500 | MTTF-750 |
|---|---|---|---|---|
| Operating Frequency (GHz) | 26.5 | 18 | 13.5 | 13.5 |
| Impedance (Ω) | 50 | 50 | 50 | 50 |
| Velocity Of Propogation (%) | 76 | 76 | 76 | 76 |
| Dielectric Constant | 1.73 | 1.73 | 1.73 | 1.73 |
| Shielding Effectiveness (dB) | > 90 | > 90 | > 90 | > 90 |
| Time Delay (ns/m (ns/ft)) | 4.38 (1.33) | 4.38 (1.33) | 4.38 (1.33) | 4.38 (1.33) |
| Capacitance (pF/m (pF/ft)) | 87.7 (26.7) | 87.7 (26.7) | 87.7 (26.7) | 87.7 (26.7) |
| Inductance (µH/m (µH/ft)) | 0.22 (0.067) | 0.22 (0.067) | 0.22 (0.067) | 0.22 (0.067) |
| Cutoff Frequency (GHz) | 67 | 40 | 25 | 16 |
| Withstand Voltage (V DC) | 500 | 800 | 1500 | 2000 |
| Peak Power (kW) | 0.6 | 1.6 | 5.6 | 10 |
Attenuation comparison & power handling
The charts below compare the listed cable-only attenuation and power-reference values. A curve stops where that model's published table ends; unavailable data are not extrapolated.
Insertion loss vs frequency
dB / 100 m at +25°CLower loss means less attenuation for the same cable length. Connector loss and mismatch are additional.
Power handling vs frequency
kW · reference at +40°C, sea level, VSWR 1.1Power figures are cable-reference values under the published conditions; they do not establish a completed cable-assembly rating.
Compare all models at 1 GHz
| Model | Loss (dB / 100 m) | Operating limit | Outer diameter |
|---|---|---|---|
| MTTF-280 | 60.67 | 26.5 GHz | 2.6 mm |
| MTTF-350 | 38.57 | 18 GHz | 3.5 mm |
| MTTF-500 | 23.79 | 13.5 GHz | 5.2 mm |
| MTTF-750 | 15.07 | 13.5 GHz | 7.8 mm |
Interactive cable-only insertion-loss calculator
Select a published frequency and enter the cable length. No interpolation beyond the source frequency points.
Full cable attenuation tables — dB / 100 m
| Parameter | MTTF-280 | MTTF-350 | MTTF-500 | MTTF-750 |
|---|---|---|---|---|
| 0.05 GHz | 13.08 | 8.47 | 5.13 | 3.21 |
| 0.1 GHz | 18.58 | 12.01 | 7.29 | 4.57 |
| 0.5 GHz | 42.32 | 27.09 | 16.60 | 10.47 |
| 1 GHz | 60.67 | 38.57 | 23.79 | 15.07 |
| 2 GHz | 87.44 | 55.06 | 34.29 | 21.83 |
| 4 GHz | 126.94 | 78.90 | 49.76 | 31.93 |
| 6 GHz | 158.55 | 97.60 | 62.14 | 40.09 |
| 8 GHz | 186.08 | 113.64 | 72.92 | 47.25 |
| 10 GHz | 211.00 | 127.98 | 82.68 | 53.78 |
| 12 GHz | 234.07 | 141.12 | 91.71 | 59.85 |
| 13.5 GHz | — | — | 98.11 | 64.18 |
| 15 GHz | 266.13 | 159.17 | — | — |
| 18 GHz | 295.92 | 175.74 | — | — |
| 24 GHz | 350.70 | — | — | — |
| 26.5 GHz | 372.10 | — | — | — |
Full power-handling reference tables — kW
| Parameter | MTTF-280 | MTTF-350 | MTTF-500 | MTTF-750 |
|---|---|---|---|---|
| 0.05 GHz | 0.465 | 2.098 | 3.552 | 7.850 |
| 0.1 GHz | 0.327 | 1.480 | 2.500 | 5.519 |
| 0.5 GHz | 0.144 | 0.656 | 1.098 | 2.409 |
| 1 GHz | 0.100 | 0.461 | 0.766 | 1.674 |
| 2 GHz | 0.070 | 0.323 | 0.532 | 1.155 |
| 4 GHz | 0.048 | 0.225 | 0.366 | 0.790 |
| 6 GHz | 0.038 | 0.182 | 0.293 | 0.629 |
| 8 GHz | 0.033 | 0.156 | 0.250 | 0.534 |
| 10 GHz | 0.029 | 0.139 | 0.220 | 0.469 |
| 12 GHz | 0.026 | 0.126 | 0.199 | 0.421 |
| 13.5 GHz | — | — | 0.186 | 0.393 |
| 15 GHz | 0.023 | 0.112 | — | — |
| 18 GHz | 0.021 | 0.101 | — | — |
| 24 GHz | 0.017 | — | — | — |
| 26.5 GHz | 0.016 | — | — | — |
All loss data are taken from the supplied catalogue. Attenuation is specified at +25°C; cable power-reference values are specified at +40°C ambient, sea level, VSWR 1.1.
Construction, dimensions & flexibility
Use the outside diameter and bend-radius figures to help select an appropriate cable model and integration envelope.
| Parameter | MTTF-280 | MTTF-350 | MTTF-500 | MTTF-750 |
|---|---|---|---|---|
| Center Conductor | 0.56 mm | 0.94 mm | 1.45 mm | 2.30 mm |
| Dielectric | 1.60 mm | 2.75 mm | 4.30 mm | 6.70 mm |
| Outer Conductor | 1.68 mm | 2.80 mm | 4.38 mm | 6.80 mm |
| Outer Shield | 2.00 mm | 3.20 mm | 4.78 mm | 7.33 mm |
| Jacket | 2.60 mm | 3.50 mm | 5.20 mm | 7.80 mm |
| Bend Radius — Minimum | 12.00 mm | 14.00 mm | 20.00 mm | 32.00 mm |
| Bend Radius — Repeated | 28.00 mm | 35.00 mm | 52.00 mm | 78.00 mm |
| Weight | 18 g/m | 29 g/m | 60 g/m | 110 g/m |
| Temperature Range | -55 TO 165 °C | -55 TO 165 °C | -55 TO 165 °C | -55 TO 165 °C |
Dimensions and temperatures follow the supplied source. Figures for the published operating-frequency range and the cutoff frequency are separate specifications.
Where MTTF cables are used
Series benefits
Typical applications
Connector and cable assembly options
Connector combinations shown below are drawn from the source family overview. Compatibility and available termination style vary by model and must be confirmed for each RFQ.
Specify the cable model, connector at each end, assembly length, quantity and operating frequency. Other connector styles may be offered subject to engineering review.