Meta Description: Discover the differences between shielded and unshielded micro coaxial cables. Learn which type suits your project for optimal performance, EMI protection, and cost-efficiency.
When selecting micro coaxial cables for electronics, medical devices, or high-frequency applications, the choice between shielded and unshielded designs is critical. Both types have unique advantages and limitations. In this guide, we’ll break down their differences, use cases, and how to pick the right one for your needs.
Micro coaxial cables are miniature versions of traditional coaxial cables, designed to transmit high-frequency signals (e.g., data, video) with minimal loss. Their compact size makes them ideal for modern electronics like smartphones, routers, medical devices, and automotive systems.
Shielded micro coaxial cables (SMC) feature an additional conductive layer—usually aluminum foil or braided metal—around the inner conductor. This layer blocks electromagnetic interference (EMI) and radio-frequency interference (RFI).
Unshielded micro coaxial cables (UMC) lack the protective metallic layer, relying on insulation and twisting to reduce interference.
| Feature | Shielded | Unshielded |
|---|---|---|
| EMI/RFI Protection | Excellent | Limited |
| Cost | Higher | Lower |
| Flexibility | Less flexible | Highly flexible |
| Installation Complexity | Requires grounding | Simple |
| Ideal Use Cases | Industrial, medical, military | Consumer electronics, short runs |
Q: Can I use unshielded cables for automotive systems?
A: Only in non-critical, low-EMI areas. Shielded cables are safer for engine control or infotainment systems.
Q: Do shielded cables eliminate all interference?
A: No, but they significantly reduce it. Pair with proper grounding and routing for best results.
Q: Are shielded micro coaxial cables heavier?
A: Yes, the shielding adds weight, which may matter in drones or wearable tech.
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