Product introduction
| Product introduction |
| BNC180° male head to SMB180° male head |
| Wire: RG174 RF coaxial cable |
| Interface type: BNC&SMB |
| Wire length: 5cm~200cm (length can be customized) |
| RG174 silver-plated cable parameter description | ||
| 1. Core parameters | ||
| Parameter | Typical value | Standard |
| Characteristic impedance | 50Ω ± 3Ω | RF standard impedance |
| Outside diameter | 2.8mm | The total diameter of the sheath |
| Central conductor | 7×0.16mm tin-plated copper stranded wire | Equivalent AWG26, good flexibility |
| Insulating materials | PVC or PE foam | Low-cost solution (high loss) |
| Shielding layer | Tinned copper braided layer (coverage rate ≥95%) | Single-layer weaving, basic shielding efficiency |
| Cover material | PVC | Flame retardant, flexible, limited temperature resistance |
| Minimum bending radius | 3 mm (static) / 6 mm (dynamic) | The signal delay is high. |
| 2. Frequency and attenuation | |||
| Frequency | Attenuation (dB/m) | Attenuation (dB/ft) | Application scenarios |
| 100MHz | 0.21dB/m | 0.064dB/ft | Available at low frequency |
| 500MHz | 0.48dB/m | 0.15dB/ft | 4G/LTE low frequency band |
| 1GHz | 0.68dB/m | 0.21dB/ft | Bluetooth/Wi-Fi 2.4GHz |
| 2.4GHz | 1.10dB/m | 0.34dB/ft | Wi-Fi/Internet of Things Critical Point |
| 3GHz | 1.25dB/m | 0.38dB/ft | The loss began to increase sharply. |
| 5GHz | 1.65dB/m | 0.50dB/ft | Wi-Fi 5 frequency band (use long lines carefully) |
| 6GHz | 1.82dB/m | 0.55dB/ft | Wi-Fi 6 frequency band (strongly not recommended) |
| 3. Electrical performance | |
| Parameter | Value |
| Electric capacity | 101 pF/m |
| Maximum working voltage | 1500 V RMS (25°C) |
| Average power capacity | 330W |
| Peak power capacity | 2.5KW |
| Zhu Boby | ≤1.5:1(DC-3GHz) |
| 4. Mechanical and environmental characteristics | |
| Parameter | Value |
| Minimum bending radius | 15mm (static)/30mm (dynamic) |
| Operating temperature range | -40℃~+80℃ (PVC sheath) |
| Tensile strength | ≥50N |
| Shielding efficiency | ≥70dB（1GHz） |
| Flame retardant level | UL1581/VW-1 |
| 5. Core advantages |
| The lowest cost: the price is about 60% of RG316 and 40% of the foam line |
| Extreme flexibility: bending flexibility is better than thicker cables (such as RG58) |
| Wide compatibility: outer diameter 2.8mm adapts to standard MCX/SMA/MMCX pressure joint |
| Selection guide | |||||
| 1. Commonly used adaptive cable specifications and characteristics | |||||
| Model | Outside diameter | Central conductor | 3GHz loss | Distinguishing feature | Applicable scenarios |
| RG-174 | 2.8mm | 7*0.16mm | 0.82dB/m | Flexible, easy to install, low cost | Consumer electronics |
| RG-316 | 2.6mm | 7*0.1mm | 0.84dB/m | High temperature resistance, military industry standards | High-temperature environment, test instruments |
| Micro-foam PE line | 1.5~2.2mm | 0.3~0.5mm | 0.50dB/m | Low high-frequency loss | 5G/Wi-Fi |
| Semi-steel wire | 1.0~3.0mm | Solid copper | 0.30dB/m | Relatively stable and well shielded | Test calibration, millimeter wave front band |
| 2. Key parameter comparison and selection logic | ||||
| 2.1 Priority of electrical performance | ||||
| Parameter | RG-174 | RG-316 | Foamed PE line | Affect |
| Attenuation @6GHz | 1.8dBm/m | 1.7dBm/m | 0.9dBm/m | High-frequency signal integrity |
| Shielding efficiency | 70dB | 90dB | >90dB | Anti-interference ability |
| Impedance stability | ±3Ω | ±2Ω | ±1Ω | Reflection signal suppression |
| 2.2 Mechanical and environmental adaptability | |||
| Parameter | RG-174 | RG-316 | Foamed PE line |
| Minimum bending radius | 15mm | 25mm | 30mm |
| Temperature tolerance range | -40℃~+85℃ | -65℃~+200℃ | -50℃~+85℃ |
| Tensile strength | Medium | Tall | Low (easy to damage) |
| 3. Typical application scenarios and cable matching |
| 3.1 Consumer electronic products (Bluetooth/Wi-Fi) |
| Cable: RG-174 |
| Reason: cost-sensitive, frequency ≤5GHz, short length (<0.3m) and controllable loss. |
| 3.2 Test instrument jumper (vector network analyzer) |
| Cable: RG-316 or low-loss foam cable (such as Times LMR-200) |
| Reason: It needs to be resistant to plugging and low loss (high calibration accuracy requirements). |
| 3.3 On-board radar/5G small base station |
| Cable: PTFE insulated foam cable (such as Gore G-FLEX 150) |
| Reason: 6~24GHz low loss demand, outer diameter ≤2mm convenient for wiring. |
| 3.4 Military equipment |
| Cable: RG-316 (military standard MIL-DTL-17) |
| Reason: Resistant to extreme temperature and vibration, high shielding requirements. |
| 4. Supplementary explanation |
| 4.1 Outer diameter mismatch: MCX connectors usually support 1.0~3.0mm wire diameters, and need to be customized beyond the range (such as micro wires, special MCX heads are required). |
| 4.2 High-frequency loss: RG-174 is twice as high as foam PE wire at 6GHz, and long-distance transmission avoids use. |
| 4.3 Phase stability: For phase-sensitive applications (phased arrays), semi-rigid lines or phase-stable cables (such as Huber+Suhner S100) are preferred. |
| 4.4 Connector level: Gold-plated contact MCX (non-nickel-plated) is selected to ensure a life of >500 plugging and unplugging. |
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BNC180° male head to SMB180° male head
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