Product introduction
Product Introduction
SMA to BNC Male to Male RF Cable Cable:
RG316 blue cable RF cable
Interface Type: SMA&BNC
Cable length: 5cm ~200cm (length can be customized)
RG316 blue cable RF cable parameter description
1. Core parameters
parameter | Typical values | standard |
characteristic impedance | 50Ω ± 2Ω | MIL-STD-348 impedance matched |
Outside diameter | 2.6 mm (0.102in) | PTFE jacket included, compact design |
Central conductor | 7×0.1mm tinned copper stranded wire | Equivalent AWG30 for resistance to bending fatigue |
Insulation | Solid PTFE (Teflon) | Dielectric constant 2.1, high temperature/chemical resistance |
shielding | Tinned copper braid (coverage ≥95%) | Single-layer braiding, >90dB shielding performance (1GHz) |
Sheath material | FEP or PTFE | Flame retardant, resistant to 200°C high temperature |
Speed of transmission | 69.5% speed of light (VF =0.695) | Latency 4.84 ns/m |
Military code name | M 17/74-RG316 | MIL-DTL-17 compliant |
2. Frequency and attenuation
frequency | Attenuation (dB/m) | Attenuation (dB/ft) | Application scenario risk warning |
100MHz | 0.15dB/m | 0.046dB/ft | 30% better than RG174 |
500MHz | 0.34dB/m | 0.104dB/ft | 4G/LTE mid-band |
1GHz | 0.48dB/m | 0.146dB/ft | Tipping point : Bluetooth/Wi-Fi |
2.4GHz | 0.75dB/m | 0.229dB/ft | Wi-Fi 2.4GHz mainstay |
3GHz | 0.84dB/m | 0.256dB/ft | 5G Sub-6GHz low-band |
5GHz | 1.10dB/m | 0.335dB/ft | Wi-Fi 5/6 key frequency bands |
6GHz | 1.25dB/m | 0.381dB/ft | Wi-Fi 6E limit |
10GHz | 1.85dB/m | 0.564dB/ft | Losses have increased sharply, use with caution! |
3. Electrical performance
parameter | Value | Test conditions |
Maximum operating voltage | 1,900 V RMS (25°C) | Sea level, 25°C |
Average power capacity | 100 watts | Continuous wave |
Peak power capacity | 2 kW | 3 μs pulse |
capacitance | 29 pF/m | 1 kHz |
4. Mechanical and environmental characteristics
parameter | Value | Test conditions |
Minimum bend radius | 25 mm (static) | Permanent deformation threshold |
Dynamic bend radius | 50mm | Mobile applicable |
Operating temperature range | -65℃ ~ +200℃ | PTFE insulation/sheath limit |
tensile strength | ≥70 N | IEC 61196 standard |
Shielding efficiency | ≥ 90 dB (1 GHz) | MIL-STD-1344 Method 3007 |
5. Supplementary instructions
5.1 Extreme temperature adaptability
-65°C ~ +200°C Full Temperature Range (Essential for Avionics/Engine Compartment Scenarios)
5.2 Phase stability
Temperature drift of only ±0.2 ppm/°C (better than RG174's ±3 ppm/°C)
5.3 Chemical resistance
PTFE insulation resists fuel/hydraulic fluid/solvent (MIL-STD-810G certified)
5.4 High vibration reliability
Passed 20~2000Hz sinusoidal vibration test (military equipment standard)
Selection guide
1. Specifications and characteristics of commonly adapted cables
Model | Outside diameter | Central conductor | 3GHz loss | peculiarity | Applicable scenarios |
RG-174 | 2.8mm | 7*0.16mm | 0.82dB/m | Flexible, easy to install, and 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 foamed PE wire | 1.5~2.2mm | 0.3~0.5mm | 0.50dB/m | High frequency loss is low | 5G/Wi-Fi |
Semi-steel wire | 1.0~3.0mm | Solid copper | 0.30dB/m | Relatively stable and good shielding | Test calibration, mmWave front |
2. Comparison of key parameters and selection logic
2.1 Electrical performance priority
parameter | RG-174 | RG-316 | Foamed PE wire | effect |
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 | Reflected signal suppression |
2.2 Mechanical and environmental adaptability
parameter | RG-174 | RG-316 | Foamed PE wire |
Minimum bend radius | 15mm | 25mm | 30mm |
Temperature range | -40℃ ~ +85℃ | -65℃ ~ +200℃ | -50℃ ~ +85℃ |
tensile strength | medium | Tall | Low (easily damaged) |
3. Typical application scenarios are matched with cables
3.1 Consumer Electronics (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 (e.g. Times LMR-200)
Reason: It needs to be resistant to plugging and unplugging, low loss (high calibration accuracy requirements).
3.3 Vehicle radar/5G small cell station
Cable: PTFE insulated foam wire (e.g. Gore G-FLEX 150)
Reason: 6~24GHz low loss requirements, outer diameter ≤2mm for easy wiring.
3.4 Military equipment
Cable: RG-316 (Mi-Label MIL-DTL-17)
Reason: Resistant to extreme temperatures, vibration, and high shielding requirements.
4. Supplementary instructions
4.1 Outer diameter mismatch: MCX connectors usually support 1.0~3.0mm wire diameter, which needs to be customized beyond the range (such as micro wires require a dedicated MCX head).
4.2 High frequency loss: RG-174 has 2 times higher loss than foamed PE wire at 6GHz, and is avoided for long-distance transmission.
4.3 Phase stability: For phase-sensitive applications (phased arrays), prefer semi-rigid wires or phase-stabilized cables (such as Huber+Suhner S100).
4.4 Connector Grade: Gold-plated contacts MCX (non-nickel plated) are selected to ensure a > 500 plugging and unmating life.
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SMA to BNC male to male radio frequency connection cable
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