The HFL-132D/50-STT micro coaxial cable is an ultra-fine, double-shielded 50 Ohm RF cable built for high-reliability signal transmission in electronically noisy and space-restricted environments. With a compact outer diameter of just 1.32mm, this miniature coax features a silver-plated copper stranded conductor (7/0.08mm) and high-grade Fluorinated Ethylene Propylene (FEP) insulation, offering exceptional electrical stability and thermal resistance up to 6 GHz.
Distinguished by its specialized dual-layer tinned copper braid shielding—providing 90% coverage on both inner and outer shield layers—the HFL-132D/50-STT delivers superior cross-talk attenuation and RFI isolation. Ideal for Wi-Fi 6E/7 internal leads, drone wireless telemetry, medical endoscopic devices, and high-density PCB interconnects, HiFlexlink ensures strict 50 ± 2 Ohm impedance control. In addition to raw cable manufacturing, HiFlexlink provides custom OEM cable assemblies terminated with IPEX, MHF, or custom micro RF connectors tailored to your exact system requirements.
HFL-132D/50-STT Double Braid Shielded Micro Coaxial Cable
Specialized 1.32mm double tinned copper braid shielded coaxial cable designed for enhanced EMI isolation in compact high-frequency RF systems up to 6GHz.
Ultra-Compact 1.32mm OD: Exceptionally fine outer profile designed for high-density space-constrained RF layouts.
Double Braid Shielding: Dual tinned copper braid shields (16/4/0.05mm + 16/6/0.05mm, 90% coverage each) for maximum EMI/RFI suppression.
Silver-Plated Copper Core: Stranded silver-plated conductor (7/0.08mm) ensures low conductor resistance and fast signal propagation.
Stable 50 Ohm Performance: Precision 50 ± 2 Ohm impedance with low VSWR ≤ 1.3 across frequencies up to 6 GHz.
Dual FEP Insulation & Jacket: All-fluoropolymer construction guarantees outstanding thermal range (-55℃ to +125℃) and chemical stability.
Micro RF Connector Compatible: Perfect for precision crimping with IPEX MHF, Hirose U.FL, and mini RF connectors.
Technical Specifications & Construction
1. Product Construction & Parameters
| Structure Item | Material & Construction | Outer Diameter (OD) | Coverage |
|---|---|---|---|
| ① Inner Conductor | Silver-plated copper wire (7/0.08 mm) | 0.24 ± 0.02 mm | – |
| ② Insulation | FEP (Clarity) | 0.70 ± 0.02 mm | – |
| ③ Inner Braid Shield | Tinned copper wire (16/4/0.05 mm) | 0.92 ± 0.05 mm | 90 ± 5% |
| ④ Outer Braid Shield | Tinned copper wire (16/6/0.05 mm) | 1.13 ± 0.05 mm | 90 ± 5% |
| ⑤ Jacket | FEP | 1.32 ± 0.05 mm | Multiple Colors |
2. Electrical 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 |
| Attenuation (@ 20℃, dB/m) | |
|---|---|
| 1 GHz / 2 GHz | ≤ 2.10 / ≤ 3.00 dB/m |
| 3 GHz / 4 GHz | ≤ 3.60 / ≤ 4.30 dB/m |
| 5 GHz / 6 GHz | ≤ 5.00 / ≤ 5.60 dB/m |
Key Features
- Double Braid EMI Protection: Two independent tinned copper braid layers deliver superior noise isolation compared to single-shield cables.
- Precision 50 Ohm Impedance: Maintained at 50 ± 2 Ohm with a 70% velocity of propagation for minimal signal reflection.
- High-Grade Silver Conductor: Stranded silver-plated copper wire (29-30 AWG equivalent core) optimizes conductivity.
- High Thermal Tolerance: Clear and colored FEP materials rated for demanding temperatures from -55℃ to +125℃.
- Flexible 1.32mm Profile: Small 4mm minimum static bend radius allows seamless routing in tight enclosures.
Target Applications
- High-EMI Wireless Infrastructure: Wi-Fi 6E/7 gateways, 5G NR micro-antennas, and dense RF router modules.
- Aerospace & UAV Telemetry: Unmanned Aerial Vehicles, flight controllers, and compact avionics requiring high isolation.
- Medical & Imaging Devices: Endoscopic cameras, ultrasound probes, and wearable diagnostic equipment.
- Portable Test & Consumer Devices: Laptops, handheld test gear, smart home hubs, and internal antenna interconnects.
- Custom RF Cable Assemblies: Factory-assembled jumper leads with IPEX MHF, Hirose U.FL, or SMA crimp connectors.
Frequently Asked Questions about HFL-132D/50-STT
What is the main advantage of the double braid shield in HFL-132D/50-STT?
The double tinned copper braid architecture (inner 90% + outer 90% coverage) drastically increases shielding efficiency compared to standard single-shield cables. This prevents electromagnetic interference (EMI) and crosstalk in high-density wireless devices.
How does HFL-132D/50-STT compare to 1.37mm or RG178 micro coaxial cables?
HFL-132D/50-STT offers a slightly slimmer 1.32mm profile while providing dual braid shields. Standard RG178 (1.80mm) and standard 1.37mm single-shield cables have lower shielding effectiveness in high-noise environments.
Which micro RF connectors are compatible with the 1.32mm double shielded coax?
The 1.32mm outer diameter is fully compatible with IPEX MHF series, Hirose U.FL series, and custom crimp-style SMA or SSMB micro RF connectors.
Can HiFlexlink customize the cable construction or pre-assemble connectors?
Yes. HiFlexlink provides complete OEM/ODM services, including customized conductor materials, jacket colors, pre-cut lengths, stripping, and fully tested jumper assemblies.
Custom Engineering & OEM/ODM Manufacturing:
Need specialized RF cable parameters for your hardware? HiFlexlink provides broad customization capabilities: