The HFL-115L/50-S1 micro coaxial cable is an ultra-miniature, high-precision 50 Ohm RF cable crafted for critical, highly restricted internal wiring environments. Built with a remarkably small 1.15mm outer profile, this micro-coax features a silver-plated copper stranded conductor (7/0.083mm) protected by high-purity Fluorinated Ethylene Propylene (FEP) insulation, ensuring low signal distortion across high frequencies up to 6 GHz.
Designed specifically to meet strict non-magnetic and high-density isolation requirements, the HFL-115L/50-S1 utilizes a dual-shielding mechanism—combining 100% copper-plastic composite tape with a dense 90% tinned copper braid shield. This structure renders it an ideal component for medical MRI coil repair, endoscopic sensors, ultra-thin laptop displays, and compact drone antennas where space and magnetic neutrality are paramount. HiFlexlink provides strict 50 ± 2 Ohm impedance matching alongside customized pre-terminated micro RF jumper assemblies.
HFL-115L/50-S1 Micro Coaxial Cable (50Ω)
High-performance 1.15mm OD micro RF coaxial cable featuring silver-plated copper inner conductor, double shielding (Cu-plastic tape + tinned copper braid), and FEP jacket. Designed for flexible RF signal transmission up to 6GHz.
- Ultra-Fine 1.15mm Outer Diameter: Engineered for extreme space savings and non-magnetic MRI coil repair & sensor wiring.
- Dual-Layer Composite Isolation: Copper-plastic tape (100% foil) + tinned copper braid (90% braid) prevents high-frequency cross-talk.
- Precision 30 AWG Silver Conductor: Stranded silver-plated copper wire (7/0.083mm) provides exceptional signal conductivity.
- Stable 50 Ohm RF Transmission: Maintains 50 ± 2 Ohm impedance and low VSWR ≤ 1.3 for 0–6 GHz microwave signals.
- High-Grade Fluoropolymer Jacket: Durable FEP construction offers wide temperature tolerance (-55℃ to +125℃) and chemical inertia.
- Ultra-Compact Connector Mating: Compatible with IPEX MHF4, Hirose U.FL, and micro-soldered PCB terminal connections.
Technical Specifications & Construction
1. Product Construction & Parameters
| Structure Item | Material & Construction | Outer Diameter (OD) | Coverage / Color |
|---|---|---|---|
| ① Inner Conductor | Silver-plated copper wire (7/0.083 mm) | 0.249 ± 0.02 mm | – |
| ② Insulation | FEP | 0.72 ± 0.03 mm | Clarity |
| ③ Outer Conductor 1 | Cu-plastic composite tape | 0.759 ± 0.03 mm | 100% Coverage |
| ④ Outer Conductor 2 | Tinned copper wire braid | 0.96 ± 0.05 mm | 90 ± 5% Coverage |
| ⑤ Jacket | FEP | 1.15 ± 0.05 mm | Multiple Colors Available |
2. Electrical & Mechanical Characteristics
| Electrical Properties | |
|---|---|
| Impedance (@1ns) | 50 ± 2 Ω |
| Capacitance | 98 ± 4 pF/m |
| Velocity of Propagation | 70 ± 2 % |
| VSWR (0 ~ 6GHz) | ≤ 1.3 |
| Rating Voltage | 30 V |
| Max Operating Frequency | 6 GHz |
| Attenuation (@ 20℃, dB/m) | |
|---|---|
| 1 GHz | ≤ 1.88 dB/m |
| 2 GHz | ≤ 2.55 dB/m |
| 3 GHz | ≤ 3.05 dB/m |
| 4 GHz | ≤ 3.52 dB/m |
| 5 GHz | ≤ 4.05 dB/m |
| 6 GHz | ≤ 4.40 dB/m |
Key Features
- Sub-1.2mm Micro Design: 1.15mm OD enables tight routing in sub-millimeter chassis grooves and delicate medical wands.
- Dual Shield Noise Suppression: Cu-plastic tape + copper braid eliminates RF interference in dense multi-channel devices.
- High-Purity Silver-Plated Core: 30 AWG stranded silver-plated copper delivers superior skin-effect performance.
- Broad Operating Range: All-FEP dielectric withstands harsh chemical, thermal (-55℃ to +125℃), and mechanical stresses.
- Tight 3.5mm Static Bend Radius: Exceptional mechanical flexibility for intricate soldering and crimping processes.
Target Applications
- Medical MRI & Imaging Systems: MRI receiving coil maintenance, non-magnetic diagnostic probes, and endoscopic camera wiring.
- Ultra-Compact Wireless Modules: Micro Wi-Fi 6E/7 internal leads, Bluetooth smart tags, and wearable health trackers.
- Miniature Aerospace & UAV: Drone video transmitter links, nano-satellite telemetry, and lightweight avionics.
- Consumer Electronics: Ultra-thin notebooks, VR/AR headset displays, and handheld gaming consoles.
- Custom Micro Cable Harnesses: Factory-terminated jumper leads fitted with IPEX MHF4, Hirose U.FL, or bare-wire tinning.
Frequently Asked Questions about HFL-115L/50-S1
Why is the HFL-115L/50-S1 cable suitable for MRI coil repair?
The HFL-115L/50-S1 is constructed with non-magnetic and low-magnetic material options, an ultra-thin 1.15mm diameter, and double shielding (Cu-foil + braid). This ensures no RF field distortion or magnetic resonance interference during medical MRI coil servicing.
How does 1.15mm HFL-115L/50-S1 differ from 1.37mm or 1.32mm micro coax cables?
HFL-115L/50-S1 reduces the overall diameter down to 1.15mm while maintaining dual-layer composite shielding. It offers a tighter bend radius (3.5mm vs 4mm) and fits smaller micro-connectors like IPEX MHF4 and Hirose W.FL.
What connectors are compatible with 1.15mm micro coaxial cable?
It is ideal for ultra-miniature RF connectors, including IPEX MHF IV (MHF4), Hirose U.FL/W.FL, and direct micro PCB solder pads.
Can HiFlexlink manufacture custom variations of the HFL-115L/50-S1?
Yes. HiFlexlink offers custom options for conductor plating (silver/tinned copper), jacket color coding, exact cut lengths, and pre-assembled RF connector harnesses.
Custom Engineering & Medical/Industrial OEM Services
Looking for specialized micro-coaxial cable specs for medical or space-sensitive equipment? HiFlexlink offers tailor-made manufacturing: