Semi-Finished Coaxial Cable – RG59 CU/48/CCA
Type: 75 Ohm Coaxial Cable Core (No Jacket)
Stage: Semi-finished for extrusion or final assembly
Conductor: Solid Bare Copper (CU)
Shielding: Aluminum Foil + 48-Strand Copper-Clad Aluminum (CCA) Braid
1. Construction Specifications
| Layer | Material | Spec | Function |
|---|---|---|---|
| Inner Conductor | Solid Bare Copper (CU) | Ø 0.81 mm ± 0.01 mm | Excellent signal transmission, low resistance |
| Dielectric | Physical Foamed Polyethylene (PE) | Ø ~3.66 mm ± 0.10 mm | Maintains impedance and reduces capacitance |
| First Shield | Aluminum Foil (Mylar) | 100% coverage | Primary EMI barrier and impedance stabilization |
| Second Shield (Braid) | 48 strands of Copper-Clad Aluminum (CCA), Ø 0.12 mm | ~35–45% coverage | Lightweight, cost-saving secondary EMI shield |
| Outer Jacket | Not included | — | To be applied during downstream manufacturing (PVC, PE, LSZH) |
2. Typical Electrical Characteristics
| Parameter | Value |
|---|---|
| Impedance | 75 ± 3 Ω |
| Capacitance | ~53 pF/m |
| Velocity of Propagation | ~85% |
| Attenuation @ 100 MHz | ~6.6–6.8 dB/100m |
| Return Loss | ≥ 20 dB |
| Shielding Effectiveness | ~40–45 dB (dependent on braid quality and density) |
3. Application Scenarios
Analog CCTV systems (standard resolution)
Entry- to mid-level video signal transmission
Budget-sensitive OEM cable production
Short- to medium-distance RF interconnects
4. Post-Jacketing Customization Options
Outer Jacket Materials:
PVC (indoor use)
PE (UV-resistant, outdoor use)
FR-PVC / LSZH (for CPR compliance)
Certifications (optional after final assembly):
CE, RoHS, CPR Eca or Dca (with compliant jacket and production testing)
Branding & Printing:
OEM meter marking, logos, product codes
Packaging Formats:
Supplied on 500m/1000m wooden or plastic reels
Ready for extrusion line input
