0.070" Non-Magnetic Semi-Rigid Coax 50 Ohm RF Coax Cable with Solid Outer Conductor

The SR-070C is a precision 0.070 inch (1.78mm) non-magnetic semi-rigid coaxial cable engineered for applications where ferrous materials cannot be tolerated. Featuring seamless copper tube construction with 100% RF shielding, this 50 Ohm RF coax cable utilizes a silver-plated copper center conductor with no steel content, verified non-magnetic for MRI systems, quantum computing cryostats, and precision instrumentation. The PTFE dielectric delivers 70% velocity of propagation with capacitance of 95.2 pF/m and impedance tolerance of ±1.0 Ohm. With higher order mode frequency extending to 68 GHz and voltage withstanding of 4800V RMS, this cable supports demanding medical imaging and research applications. The copper tube outer conductor at 0.070 ±0.001 inch diameter ensures consistent mechanical fit with standard connectors. Operating temperature range is -55°C to +100°C with RoHS compliance. Available in custom lengths with various termination options, backed by a 10 meter minimum order quantity.

• 100% non-magnetic construction – Silver-plated copper center conductor (0.0179 in / 0.4547 mm) with no ferrous content, verified for MRI and quantum applications
• Precision 0.070 inch diameter – 1.778mm ±0.025 outer conductor with seamless copper tube construction
• 4800V RMS voltage withstanding – Suitable for high-power RF applications in medical imaging and research systems
• 68 GHz higher order mode frequency – Ensures clean propagation through 40 GHz operation with margin
• ±1.0 Ohm impedance tolerance – Tighter than standard semi-rigid cables for precision applications
• Seamless copper tube shielding – Provides 100% RF coverage with zero signal leakage
• -55°C to +100°C operating range – Reliable performance across wide temperature environments
• 3.175 mm minimum bend radius – Formable for custom routing in tight spaces
• 1.20 kg/100m weight – Lightweight construction for sensitive applications
• RoHS compliant – Meets environmental requirements for global markets
• Custom lengths – Cut to exact specifications for prototype through production quantities
• 10 meter minimum order – Low MOQ for medical device R&D and research projects

• MRI systems – Receive coil interconnects and RF transmit paths for high-field imaging where ferrous materials create image artifacts
• Quantum computing – Control lines in dilution refrigerator cryostats requiring non-magnetic materials for qubit coherence
• Medical device manufacturing – Test fixtures for MRI-compatible electronics and implantable device qualification
• Cryogenic research – Low-temperature measurement setups for material characterization
• Precision metrology – Reference standards for sensitive magnetic field measurements
• Aerospace instrumentation – Magnetometer payloads requiring zero magnetic interference
• Nuclear magnetic resonance – Probe connections for high-field NMR spectrometers
• Particle accelerators – Beamline monitoring where magnetic materials disturb trajectories
• Research laboratories – Custom experimental setups requiring non-magnetic RF paths

A: The critical difference is the center conductor material. Standard 0.070" semi-rigid cables use copper-clad steel which introduces magnetic susceptibility. SR-070C uses a 0.0179 inch silver-plated copper center conductor with no ferrous content, verified non-magnetic for MRI and quantum applications.

A: Voltage withstanding is 4800V RMS at 60 Hz, suitable for high-power RF applications in medical imaging and research systems.

A: 68 GHz, ensuring clean propagation through the specified 40 GHz operating range with margin.

A: 50.0±1.0 Ohm, tighter than standard semi-rigid coax cables for precision applications requiring exact impedance matching.

A: 0.125 inches (3.175 mm) for static installation, allowing formable routing in tight spaces.

A: -55°C to +100°C, suitable for most laboratory and medical environments.

A: 1.20 kg per 100 meters, relatively lightweight for its diameter.

A: Standard connectors designed for 0.070 inch semi-rigid coax, including SMA, 2.92mm, and SMP types.

A: Yes, fully RoHS compliant.

A: 10 meters minimum order, with custom cut lengths available down to 0.5 inch increments.