When it comes to Fakra connectors, choosing the right coaxial cable is essential for ensuring optimal signal transmission, mechanical compatibility, and long-term reliability. But with options like RG174, RG316, and others, which cable type is best for Fakra applications?
Commonly Recommended Cable Types
1. RG174 – Cost-Effective & Compact
- Impedance: 50 ohms
- Frequency Range: Up to ~1 GHz
- Pros: Thin, flexible, low-cost
- Use Case: Ideal for short-run, space-limited applications where high-frequency performance is not critical.
Fakra RG174 cables are widely used in automotive telematics, GPS, and infotainment systems.
2. RG316 – Better Performance & Temperature Resistance
- Impedance: 50 ohms
- Frequency Range: Up to ~3 GHz
- Pros: Higher temperature tolerance, better shielding
- Use Case: Suitable for applications requiring better signal integrity and thermal stability.
Fakra RG316 cables are preferred in more demanding environments, including under-hood or outdoor installations.
3. Low-Loss Cables (e.g. RG58, LMR-100) – For High-Frequency Needs
Used when signal loss must be minimized, such as in longer cable runs or high-data-rate systems like HD video or 5G modules.
Summary: Which Should You Choose?
| Cable Type | Best For | Notes |
|---|---|---|
| RG174 | Compact, low-cost installations | Most common, good enough for GPS/4G |
| RG316 | High-temp, more durable needs | Better shielding and stability |
|
Low-Loss (e.g. RG58, LMR-100) |
Long-distance or high-frequency | Larger, less flexible |
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