The HFL-050/50-ST ultra-fine micro coaxial cable is an extreme sub-millimeter 50 Ohm RF cable specifically manufactured for mission-critical medical, diagnostic, and high-density industrial electronics. Featuring an ultra-compact outer diameter of just 0.48mm, this micro coaxial wire incorporates a silver-plated copper stranded inner conductor (7/0.04mm) encased in high-dielectric Perfluoroalkoxy (PFA) insulation, ensuring low attenuation and outstanding electrical isolation with a rated voltage up to 1000V AC.
Engineered with a 90% coverage tinned copper spiral shield and a durable PFA outer jacket, the HFL-050/50-ST combines maximum electromagnetic suppression with exceptional bending longevity. Its non-magnetic characteristics render it the premier choice for medical MRI receiving coil repairs, endoscopic camera probes, micro diagnostic wands, and high-density PCB jumper connections. HiFlexlink provides strict 50 ± 2 Ohm impedance control along with custom OEM pre-cut lengths and micro-stripped jumper assemblies.
HFL-050/50-ST Ultra-Fine Micro Coaxial Cable (0.48mm OD)
Ultra-miniature 0.48mm outer diameter micro coaxial cable with PFA dielectric and high rating voltage (1000V). Perfect for medical probes, precision instruments, and high-density electronic wiring.
Extreme Sub-Millimeter 0.48mm OD: Ultra-miniature outer profile engineered for space-critical medical probes and internal high-density micro wiring.
Premium PFA Insulation & Jacket: All-PFA fluoropolymer construction delivers 1000V AC dielectric rating and exceptional thermal resistance.
Non-Magnetic Architecture Option: Suited for medical MRI receiving coil maintenance, endoscopic sensors, and non-magnetic instruments.
High-Flexibility Spiral Shielding: Tinned copper spiral shield (90% coverage) offers superior bendability without adding braid stress.
39 AWG Ultra-Fine Silver Core: Stranded silver-plated copper wire (7/0.04mm) ensures stable signal integrity and high flex-life.
Precision 50 Ohm Performance: Maintained at 50 ± 2 Ohm impedance with low capacitance (98 pF/m) for 0–6 GHz RF transmissions.
Technical Specifications & Construction
1. Product Construction & Parameters
| Structure Item | Material & Construction | Outer Diameter (OD) | Coverage / Color |
|---|---|---|---|
| ① Inner Conductor | Silver-plated copper wire (7/0.04 mm) | 0.12 ± 0.01 mm | – |
| ② Insulation | PFA | 0.32 ± 0.03 mm | White |
| ③ Outer Conductor | Tinned copper wire (Spiral Shield) | 0.42 ± 0.05 mm | 90 ± 5% Coverage |
| ④ Jacket | PFA | 0.48 ± 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 |
| Max Operating Voltage | 1000 V |
| Attenuation (@ 20℃, dB/m) | |
|---|---|
| 1 GHz / 2 GHz | ≤ 4.60 / ≤ 6.40 dB/m |
| 3 GHz / 4 GHz | ≤ 7.90 / ≤ 9.23 dB/m |
| 5 GHz / 6 GHz | ≤ 10.34 / ≤ 11.60 dB/m |
Environmental & Packaging Specs
- Operating Temperature Range: -55℃ to +125℃
- Min. Static Bending Radius: 4 mm
- Standard Packaging: 1000 Meters/Reel
Key Features
- Sub-0.5mm Ultra-Micro Size: 0.48mm outer diameter routes effortlessly through delicate medical tubing and micro channels.
- 1000V High Operating Voltage: PFA dielectric structure supports high voltage resistance in sub-millimeter wire configurations.
- Flexible Spiral Shielding: Tinned copper spiral wrap allows repeated flexing and ultra-small bending radii without shielding breakage.
- High Thermal & Chemical Stability: Tough PFA fluoropolymer withstands extreme temperatures up to +150℃ and harsh sterilization.
- Silver-Plated Core Conductivity: 38–39 AWG equivalent core optimizes high-frequency conductivity and solder joint strength.
Target Applications
- Sub-Miniature Sensor Connections: Micro RF sensors, ultrasonic diagnostic transducers, and bio-electronic implants.
- Ultra-Thin Wearable & AR/VR Devices: Flexible internal signal links for smart rings, smart contact lens modules, and micro headsets.
- High-Density Precision Instrumentation: Space-constrained aerospace test probes and miniature RF telemetry modules.
- Custom OEM Micro Assemblies: Precision pre-cut, micro-stripped, and tinned jumper wires tailored to custom PCB pads.
Frequently Asked Questions about HFL-050/50-ST
Why is PFA insulation used in the 0.48mm HFL-050/50-ST micro coaxial cable?
PFA provides superior dielectric strength, higher temperature resistance (up to +150℃), and higher rating voltage (1000V AC) compared to standard FEP, making this 0.48mm cable safer and more durable in compact medical probes.
How does 0.48mm HFL-050/50-ST compare to 0.81mm or 1.13mm micro coax cables?
HFL-050/50-ST is less than half the diameter of 1.13mm cable. It utilizes a spiral shield instead of a standard braid to maximize flexibility in micro-lumen medical tubes where 0.81mm or 1.13mm cables are too thick to fit.
Can HiFlexlink supply pre-stripped or tinned ends for 0.48mm micro coaxial cable?
Yes. Due to the ultra-fine 0.48mm outer diameter, HiFlexlink provides factory precision laser stripping, automated end-tinning, and custom jumper assemblies according to your precise manufacturing drawings.
Need to Custom a RF Coaxial Cable
Requiring specialized sub-millimeter coaxial cable parameters for medical tools or military sensors? HiFlexlink offers expert custom engineering: