SBF Cable Series
Titantek
SBF (Strip Braid Flex™) Coaxial Cable
Titantek’s SBF Strip Braid Flex™ coaxial cables, more flexible and supple versions of the industry standard SS Spiral Strip constructions, have been designed with a specially formulated 105ºC jacket compound and stranded silver plated copper center conductors. These 50 ohm versions exhibit VSWR levels that meet or exceed similar size flexible constructions, and just like their SS cable counterparts, offer excellent shielding effectiveness with readily available connectors.
| Key Specifications (Click on Data Sheet Above for Additional Details). | ||
| Generic Name | SBF402-105Flex | SBF405-105Flex |
| Flex Type | Flexible | Flexible |
| Impedance | 50 Ohm | 50 Ohm |
| Center conductor | Stranded silver plated copper | Stranded silver plated copper |
| Dielectric Type | Solid PTFE | Solid PTFE |
| Inner shield | Flat silver plated copper strip | Flat silver plated copper strip |
| Outer braid | Round silver plated copper | Round silver plated copper |
| Jacket Material | Solid light blue specially formulated | Solid light blue specially formulated |
| Jacket Diameter | 0.180inch | 0.115inch |
| Velocity of Propagation | 70% | 70% |
| Shielding Effectiveness | <-90dB | <-90dB |
| Attenuation at 1 Ghz. | 14.5dB | 23.7dB |
| Capacitance (pF/ft) | 29.4 | 29.4 |
| Frequency, Max | 34GHz | 63GHz |
| Operating Temperature | -55°C~105°C | -55°C~105°C |
| Coax Type | Coax | |
Although the insertion loss is slightly higher than their SS cable counterparts, SBF attenuation levels through 18 GHz are substantially lower than comparable MIL-DTL-17 constructions.
SBF Strip Braid cables have also been designed with FEP jackets if a higher 200ºC temperature is required.
Attenuation Calculation and K Factors
Although typical and maximum attenuation values are given for discrete frequencies, typical attenuation values may be calculated by using K1 and K2 factors for each construction. The K1 factor is calculated by taking into consideration the type, strand factor, and diameter of the center conductor, and the impedance of the cable. The K2 factor is calculated by taking into consideration the velocity of propogation and the dissipation factor of the dielectric.
Formula for Calculating Attenuation using K Factors:
Attenuation (dB/100 ft) at any frequency (MHz) =(K1 x √¯¯¯¯¯ + (K2 x frequency)
| SBF402 | SBF405 | |
| K1 | .331 | .658 |
| K2 | .001 | .001 |