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RG174 is an extremely flexible, slim, and well shielded 50 ohm coaxial cable. It performs well in applications where space is limited, frequent bending or short distance RF signal transmission is required. However, its high attenuation characteristics limit its use in long-distance or very high frequency applications. When choosing RG174, it is important to consider transmission distance, operating frequency, and power requirements to ensure that its performance meets the requirements. For critical applications, it is essential to refer to the detailed specifications provided by the specific manufacturer.
| Structure parameters | ||
| Item | Material | Diamenter (mm) |
| Inner Conductor | Copper clad steel | 7*0.17 |
| Dielectric | PE | 1.52 |
| Outer Conductor | Tin plated copper wire weaving | 1.9 |
| Jacket | PVC | 2.79 |
| Performance parameters | ||
| Capacitor | 101.05pF/m | |
| Impedance | 50ohm | |
| Transmission rate | 66% | |
| Maximum operating voltage | 1.1KVrms | |
| Maximum operating frequency | 1000MHz | |
| Working temperature range | -25～+70℃ | |
| Bending radius | 10mm | |
| ROHS/CE/FCC | YES | |
| Frequency | 100MHz | 0.276dB/m |
| 400MHz | 0.558dB/m | |
| 1000MHz | 0.899dB/m | |
RG174 Main advantages, ultra small size and weight: extremely space saving, suitable for dense wiring.
Excellent flexibility and bending performance: The minimum bending radius is very small (usually 4-6 times the outer diameter), suitable for frequent bending or installation with complex paths.
Good shielding effect: Double shielding effectively suppresses noise interference.
Easy to install and wire: Due to its softness and thinness, it is convenient for threading, bundling, and operating in small spaces.
Relatively low cost: It is an economically efficient solution.
Main disadvantage/limitation: High attenuation: Not suitable for long-distance transmission or very high-frequency applications.
Limited power processing capability: The thin central conductor limits the RF power it can carry.
Mechanical strength: Although flexible, excessive stretching or compression may cause damage (especially to the central conductor or shielding layer).
Connector selection: Small size limits the types of connectors, commonly used are small RF connectors such as SMA, MCX, MMCX, U.FL/IPX, etc. Welding small connectors (such as U.FL) requires certain skills.
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