Coaxial cable assembly, 2x SMA male, QF141, 50 cm, 26.5 GHz

Low-loss flexible cable assemblies up to 26.5 GHz

The QF141 low-loss flexible cable assemblies are designed for RF and microwave interconnections where stable electrical performance, mechanical flexibility and configuration flexibility are required. With a frequency range from DC to 26.5 GHz and 50 ohm impedance, QF141 is suitable for test & measurement setups, instrument-to-DUT connections and general-purpose microwave laboratory cabling.

QF141 is positioned as a functional alternative to comparable low-loss flexible cable assemblies such as MULTIFLEX_141 and TFlex-402, where the application requires a compact, flexible coaxial solution with custom lengths and multiple connector configurations. For replacement projects, Welco can support a form-fit-function review based on the required length, connector interface, frequency range, attenuation, VSWR and mechanical constraints.

This type of flexible low-loss cable assembly can also be used as an alternative to deformable, handy-form or semi-rigid coaxial cables in applications where easier routing, repeated handling or a more flexible installation is preferred. Typical use cases include internal RF cabling, equipment interconnections, light test setups and laboratory bench connections where the cable must be easier to route than a semi-rigid solution while maintaining suitable microwave performance.

Designed for RF labs, production test and DUT interconnects

The cable construction combines a silver-plated copper solid center conductor, solid PTFE dielectric, a silver-plated copper outer conductor, a braided shield and a blue FEP jacket. This structure supports reliable use in RF benches, validation setups and microwave test environments where repeatability, shielding and handling are important selection criteria.

• Frequency range: DC to 26.5 GHz
• Impedance: 50 ohm
• Shielding: >90 dB
• Outer diameter: 4.00 mm
• Static bending radius: min. 20 mm
• Dynamic bending radius: min. 40 mm
• Operating temperature: -50 / +105 °C
• Customized lengths: available on request

Connector options and custom assemblies

QF141 assemblies can be configured with different connector combinations, including SMA and N series interfaces in straight or right-angle versions, depending on the maximum operating frequency and layout requirements. Other connector options can be evaluated upon request.

Each assembly can be specified by connector code, cable type and length in millimeters, making the product easy to configure for laboratory, production and integration needs.

Need to replace an existing cable? Send us the target part number, length, connector configuration and operating frequency. Welco can help evaluate a technically suitable QF141 configuration and provide support for compatibility checks.