Semi-Finished Coaxial Cable – RG59 CU/64/CCA
Type: 75 Ohm Coaxial Core (Unjacketed)
Stage: Semi-finished (for downstream extrusion)
Inner Conductor: Solid Bare Copper (CU)
Shielding: Aluminum Foil + 64-Strand Copper-Clad Aluminum (CCA) Braid
1.Construction Details
| Layer | Material | Specification | Function |
|---|---|---|---|
| Inner Conductor | Solid Bare Copper (CU) | Ø 0.81 mm ± 0.01 mm | Provides excellent signal transmission with low attenuation |
| Dielectric Insulation | Physical Foamed PE | Ø ~3.66 mm ± 0.10 mm | Maintains 75Ω impedance, ensures low capacitance |
| First Shield | Aluminum-Mylar Foil | 100% coverage | Reduces high-frequency interference and stabilizes signal |
| Second Shield (Braid) | 64 strands of Ø 0.12 mm CCA wire | ~45–55% coverage | Moderate EMI protection and cost-saving alternative to full copper braid |
| Outer Jacket | Not included (semi-finished) | —— | To be applied as per market need: PVC, PE, FR-LSZH, etc. |
2. Electrical Characteristics (Typical Values)
| Parameter | Value |
|---|---|
| Impedance | 75 ± 3 ohms |
| Capacitance | ~53 pF/m |
| Velocity of Propagation | ~85% |
| Attenuation @ 100 MHz | ~6.3–6.6 dB/100m |
| Return Loss (5–1000 MHz) | ≥ 20 dB |
| Shielding Effectiveness | ~45–50 dB (depending on braid quality) |
3. Recommended Applications
Mid-grade CCTV analog video systems
Composite video and baseband signal transmission
Custom coaxial builds for OEM security products
Projects needing a balance between signal quality and cost-efficiency
4. Post-Jacketing Customization Options
Outer Jacket Types:
PVC: indoor use
PE: UV-resistant for outdoor installations
FR-PVC / LSZH: CPR compliance (Dca or Eca)
Certifications (upon completion):
CE / RoHS / CPR (after applying compliant outer sheath and testing)
Branding & Marking:
Meter marking, logo printing, product ID
Packaging Format:
Bulk reels of 500m or 1000m, wooden or plastic drums
