1.37mm Micro-Coaxial Cable

Description

The 1.37mm Micro-Coaxial cable is a specialized RF interconnect designed for 50 Ohm systems that require a balance between extreme miniaturization and electrical efficiency. With an outer diameter of 1.37mm, it is slightly larger than the 1.13mm standard, which allows for a thicker dielectric and conductor, resulting in noticeably lower signal attenuation. The cable features a stranded silver-plated copper center conductor, providing the flexibility and fatigue resistance necessary for routing through complex internal housings and hinges.

The internal construction utilizes a high-stability FEP (Fluorinated Ethylene Propylene) dielectric and jacket, ensuring exceptional thermal stability and resistance to chemicals. It is equipped with a high-density silver-plated copper braided shield, offering superior RF isolation and protection against interference in congested electronic environments. This cable is the “workhorse” for micro-pigtail assemblies, frequently used to bridge internal PCB connectors to external antennas. It is most commonly terminated with U.FL (IPEX MHF), MHF4, or SMA connectors.

Key Technical Advantages

• Lower Signal Loss: Offers superior attenuation performance compared to 1.13mm and 0.81mm cables, making it ideal for longer internal antenna runs without sacrificing space.

• High-Frequency Stability: Optimized for stable performance across the 2.4GHz, 5GHz, and 6GHz bands, ensuring reliable connectivity for WiFi 6E, WiFi 7, and 5G sub-6GHz applications.

• Enhanced Mechanical Strength: The slightly larger profile provides better physical durability and pull-strength than ultra-thin micro-coax variants.

• Silver-Plated Construction: Silver plating on both the center conductor and the shield maximizes conductivity via the “skin effect” and prevents performance degradation due to oxidation.

• Extreme Temperature Resilience: The FEP jacket allows the cable to operate reliably in environments ranging from -55°C to +200°C, suitable for industrial and aerospace use.

Key Features

• Cable Type: Micro-Coaxial (Flexible Low-Loss).

• Impedance: 50 Ohm.

• Center Conductor: 30 AWG (7/38 Stranded Silver-Plated Copper).

• Shielding: Silver-Plated Copper Braid (Typically >90% coverage).

• Jacket Materials: FEP (Fluorinated Ethylene Propylene).

• Common Applications: Internal laptop and tablet antennas, M.2/Mini-PCIe wireless cards, compact IoT devices, and drone FPV systems.

Technical Summary