MTTH Series
MTTH cable assemblies combine phase stability, mechanical strength, bending flexibility and compact RF interconnect routing for radar and electronic systems.
Choose your cable model
2.50 mm jacket, 40 GHz operating frequency, 61 GHz cutoff; high-strength phase-stable option.
Request Datasheet2.50 mm jacket, 40 GHz operating frequency, 68 GHz cutoff; lighter 250-L design.
Request Datasheet3.61 mm jacket, 26.5 GHz operating frequency, 39 GHz cutoff; higher peak-power figure.
Request DatasheetElectrical performance
Model-specific source catalogue values, with separate electrical and mechanical comparison tables.
| Parameter | MTTH-250 | MTTH-250-L | MTTH-360 |
|---|---|---|---|
| Operating Frequency (GHz) | 40 | 40 | 26.5 |
| Impedance (Ohm) | 50 | 50 | 50 |
| Velocity Of Propogation (%) | 70 | 74 | 76 |
| Dielectric Constant (---) | 2.04 | 1.83 | 1.73 |
| Shielding Effectiveness (dB) | > 90 | > 90 | > 90 |
| Time Delay (nS/m (nS/ft)) | 4.76 (1.45) | 4.50 (1.37) | 4.38 (1.33) |
| Capacitance (pF/m (pF/ft)) | 95.2 (29.0) | 90.2 (27.5) | 87.7 (26.7) |
| Inductance (uH/m (uH/ft)) | 0.23 (0.070) | 0.22 (0.068) | 0.20 (0.059) |
| Cutoff Frequency (GHz) | 61 | 68 | 39 |
| Withstand Voltage (DC) | 1000 | 900 | 1500 |
| Peak Power (kW) | 2.5 | 2.03 | 5.6 |
Attenuation, power & cable-length estimator
Cable-only attenuation is stated at 25°C in dB/100 m. Power-reference values are from the catalogue at 40°C ambient, sea level, VSWR 1.1.
Estimate insertion loss for your cable length
Cable-only loss = (published attenuation in dB/100 m) × (length in metres / 100). Excludes connectors and mismatch; uses only published frequency points, with no interpolation or extrapolation.
Full cable attenuation table (dB/100 m)
| Frequency (GHz) | MTTH-250 | MTTH-250-L | MTTH-360 |
|---|---|---|---|
| 0.05 | 18.31 | 13.22 | 8.79 |
| 0.1 | 25.94 | 18.73 | 12.45 |
| 0.5 | 58.36 | 42.24 | 28.01 |
| 1 | 82.91 | 60.12 | 39.8 |
| 2 | 118.02 | 85.78 | 56.67 |
| 4 | 168.42 | 122.84 | 80.9 |
| 6 | 207.71 | 151.87 | 99.8 |
| 8 | 241.23 | 176.76 | 115.94 |
| 10 | 271.08 | 199 | 130.31 |
| 12 | 298.31 | 219.35 | 143.42 |
| 15 | 335.58 | 247.3 | 161.38 |
| 18 | 369.65 | 272.95 | 177.8 |
| 20 | 390.98 | 289.04 | 188.09 |
| 26.5 | 454.58 | 337.24 | 218.77 |
| 35 | 528.33 | 393.47 | — |
| 40 | 568.16 | 424 | — |
Full power-handling table (kW)
| Frequency (GHz) | MTTH-250 | MTTH-250-L | MTTH-360 |
|---|---|---|---|
| 0.05 | 0.468 | 0.469 | 1.569 |
| 0.1 | 0.331 | 0.331 | 1.108 |
| 0.5 | 0.147 | 0.147 | 0.492 |
| 1 | 0.103 | 0.103 | 0.346 |
| 2 | 0.073 | 0.072 | 0.243 |
| 4 | 0.051 | 0.05 | 0.17 |
| 6 | 0.041 | 0.041 | 0.138 |
| 8 | 0.036 | 0.035 | 0.119 |
| 10 | 0.032 | 0.031 | 0.106 |
| 12 | 0.029 | 0.028 | 0.096 |
| 15 | 0.026 | 0.025 | 0.085 |
| 18 | 0.023 | 0.023 | 0.078 |
| 20 | 0.022 | 0.021 | 0.073 |
| 26.5 | 0.019 | 0.018 | 0.063 |
| 35 | 0.016 | 0.016 | — |
| 40 | 0.015 | 0.015 | — |
Mechanical dimensions & environmental data
| Parameter | MTTH-250 | MTTH-250-L | MTTH-360 |
|---|---|---|---|
| Center Conductor (mm (in)) | 0.51 (0.020) | 0.51 (0.020) | 0.91 (0.036) |
| Dielectric (mm (in)) | 1.65 (0.065) | 1.55 (0.061) | 2.72 (0.107) |
| Outer Conductor (mm (in)) | 1.82 (0.072) | 1.71 (0.067) | 2.79 (0.110) |
| Inter Layer (mm (in)) | 1.90 (0.075) | 1.81 (0.071) | 3.02 (0.119) |
| Outer Shield (mm (in)) | 2.12 (0.083) | 2.04 (0.080) | 3.20 (0.126) |
| Jacket (mm (in)) | 2.50 (0.098) | 2.50 (0.098) | 3.61 (0.142) |
| Bend Radius — Minimum (mm (in)) | 10.00 (0.394) | 10.00 (0.394) | 18.00 (0.709) |
| Bend Radius — Repeated (mm (in)) | 25.00 (0.980) | 25.00 (0.980) | 36.00 (1.420) |
| Weight (g/m (lbs/ft)) | 18 (0.012) | 16 (0.011) | 31 (0.021) |
| Temperature Range (°C (° F)) | -55 TO 200 (-67 TO 392) | -55 TO 200 (-67 TO 392) | -55 TO 200 (-67 TO 392) |
Applications & design highlights
Phase-stable bends
High cable retention and mechanical phase/amplitude stability for frequently routed RF interconnects.
High-strength construction
Stainless-steel outer shield and a multilayer shielding architecture.
Space-saving routing
Connector-base bending capability supports compact interconnections.
Welding-free connector system
Design is described as avoiding the vulnerable cable-to-connector weld joint.
Configure an RF cable assembly
Connector availability depends on the cable model. Tell us the connector genders, length and required operating conditions in the enquiry form.
| Connector order code | Connector type | Model compatibility |
|---|---|---|
| MTT-01-SMAMS-250-B | SMA male | MTTH-250 |
| MTT-01-SMAMS-360-A | SMA male | MTTH-360 |
| MTT-01-292MS-250-A | 2.92 mm male | MTTH-250 / MTTH-250-L |
Other connector arrangements and assembly lengths may be requested; availability is subject to quotation and confirmation.
Request a Datasheet, Quote or Engineering Sample
Tell us your cable model, application, desired length and connectors. Our RF team will follow up with the relevant information.
This form sends an enquiry to sales@mttinnovation.com through FormSubmit after mailbox verification. It does not automatically deliver a PDF.