Product introduction
Product Introduction
SMA female head to SMA male head
Cable: ALS302 waterproof RF coaxial wire
Interface Type: SMA
Cable length: 5cm ~200cm (length can be customized)
ALS302 waterproof RF coaxial line parameter description
1. Core parameters
parameter | Typical values | standard |
characteristic impedance | 50Ω | Standard RF matching |
Outside diameter | 6.5mm±0.2mm | Bending radius : dynamic 52mm / static 32.5mm |
Central conductor | 19×0.25mm silver-plated copper stranded wire | The cross-sectional area is 1.13m ㎡, and it is resistant to bending fatigue |
Insulation | Physical expanded polyethylene | Dielectric constant 1.55, low loss |
shielding | Aluminum foil + 96 braided tinned copper mesh | Shielding efficiency ≥100dB@1GHz |
Waterproof technology | Water-blocking powder + hot melt adhesive + water-blocking yarn | Triple longitudinal water resistance |
Sheath material | Halogen-free flame retardant polyurethane | Oil/UV/hydrolysis resistant |
Waterproof rating | IP68 | Complies with IEC 60529 standard |
2. Frequency and attenuation
frequency | Attenuation (dB/100m) | Advantages over RG213 | Applicable scenarios |
500MHz | 9.2 | 18% lower | 4G LTE base station backhaul |
1.7GHz | 15.8 | 22% lower | 5G n3 band |
2.6GHz | 22 | 25% lower | 5G n41 band |
3.5GHz | 27.5 | 28% lower | 5G main frequency band |
6GHz | 37.7 | 30% lower | Wi-Fi 6E/mmWave Fronthaul |
3. Mechanical and environmental tolerance limits
Test items | Criteria/Results | Certification basis |
Water pressure sealing | 4bar water pressure/72h without permeation | IEC 60529 IP68 |
Salt spray corrosion | There is no change in the resistance of the 720h/5% NaCl shield | ASTM B117 |
UV aging | QUV 2000h sheath is not cracked | ISO 4892-3 |
Oil resistance | Diesel immersion 168h tensile strength retains >90% | ISO 1817 |
Dynamic bending life | 5000 times@8D bending radius without failure | EN 50396 |
5. Deployment scheme for typical application scenarios
Scenario 1: AAU-RRU connection of 5G base stations
Scenario 2: Ship radar feeder
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 female head to SMA male head
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