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0.250 Silver Plated Semi‑Rigid Coaxial Cable SR‑250C-SP 50 Ohm Non‑Magnetic Cable
0.250 Silver Plated Semi‑Rigid Coaxial Cable SR‑250C-SP 50 Ohm Non‑Magnetic Cable
0.250 Silver Plated Semi‑Rigid Coaxial Cable SR‑250C-SP 50 Ohm Non‑Magnetic Cable
0.250 Silver Plated Semi‑Rigid Coaxial Cable SR‑250C-SP 50 Ohm Non‑Magnetic Cable
0.250 Silver Plated Semi‑Rigid Coaxial Cable SR‑250C-SP 50 Ohm Non‑Magnetic Cable
0.250 Silver Plated Semi‑Rigid Coaxial Cable SR‑250C-SP 50 Ohm Non‑Magnetic Cable
0.250 Silver Plated Semi‑Rigid Coaxial Cable SR‑250C-SP 50 Ohm Non‑Magnetic Cable
0.250 Silver Plated Semi‑Rigid Coaxial Cable SR‑250C-SP 50 Ohm Non‑Magnetic Cable
0.250 Silver Plated Semi‑Rigid Coaxial Cable SR‑250C-SP 50 Ohm Non‑Magnetic Cable
0.250 Silver Plated Semi‑Rigid Coaxial Cable SR‑250C-SP 50 Ohm Non‑Magnetic Cable
0.250 Silver Plated Semi‑Rigid Coaxial Cable SR‑250C-SP 50 Ohm Non‑Magnetic Cable
0.250 Silver Plated Semi‑Rigid Coaxial Cable SR‑250C-SP 50 Ohm Non‑Magnetic Cable
0.250 Silver Plated Semi‑Rigid Coaxial Cable SR‑250C-SP 50 Ohm Non‑Magnetic Cable
0.250 Silver Plated Semi‑Rigid Coaxial Cable SR‑250C-SP 50 Ohm Non‑Magnetic Cable
Specifications
Brand Name :
Bing Wire & Cable
Model Number :
SR-250C-SP
Certification :
ISO, RoHS, SGS
Place of Origin :
Shanghai, China
MOQ :
1 ft
Price :
Negotiable
Payment Terms :
T/T,Western Union,Paypal
Supply Ability :
5000ft 7days
Delivery Time :
7-15 work days
Cable family :
Semi-Rigid Cable
Center Conductor :
Silver Plated Copper
Conductor Type :
Solid
Dielectric :
Solid PTFE
Outer Conductor :
Silver Plated Copper Tube
Impedance :
50 Ohm
Capacitance :
29.0 pF/ft
Outer Diameter :
0.250'' (6.350mm)
Description
Product description

SR-250C-SP stands apart as a high-capacity 0.250" (6.35mm) 50-ohm semi-rigid coaxial cable specifically engineered for long-haul, high-power RF transmission lines in non-magnetic environments, featuring silver-plated copper outer conductor that delivers exceptional skin effect performance with ultra-low attenuation (0.57 dB/m @ 5 GHz) and 653.3W CW power handling at 1 GHz for mission-critical backbone infrastructure. Unlike smaller 0.141" non-magnetic cables optimized for moderate runs or compact modules, SR-250C-SP targets primary RF trunks spanning equipment rooms, transmitter halls, and antenna vaults where maximum power throughput and minimum loss over 50+ foot distances determine system efficiency. The non-magnetic construction ensures zero interference with MRI magnets, particle accelerators, or precision scientific fields, while precision ±0.5Ω impedance control, PTFE dielectric (70% VOP), and 16.8kV RMS voltage rating support demanding broadcast, radar transmitter output stages, and industrial RF processing applications through 19 GHz continuous operation.

Key features

  • Non-magnetic silver-plated copper shield – Optimized for long-run backbone applications in magnetic fields

  • 0.250" high-capacity geometry – 653.3W CW @ 1 GHz, 260.0W CW @ 5 GHz power handling

  • Ultra-low attenuation – 0.57 dB/m @ 5 GHz, 0.89 dB/m @ 10 GHz for 15+ meter runs

  • 50-ohm ±0.5Ω precision – VSWR <1.15:1 DC-6.5 GHz, phase stable for reference lines

  • 3.175mm minimum bend radius – 0.125" radius for planned infrastructure routing

  • 16.8kV RMS voltage rating – High-power transmit chain and broadcast applications

  • PTFE dielectric – Extreme environment reliability, -55°C to +100°C operating temperature

  • Custom OEM assemblies – Low MOQ pre-formed backbone cables from engineering drawings

Specifications
Construction
Item Material Diameter (in) Diameter (mm)
Centre Conductor Silver Plated Copper 0.0641 1.6281
Dielectric Solid PTFE 0.209 5.309
Outer Conductor Silver Plated Copper Tube 0.250 +0.002/- 0.001 6.350 +0.051/- 0.025
Electrical Data
Capacitance (pF/m) 95.2
Impedance (Ohms) 50 +/- 0.5
Velocity of Propagation (%) 70.0
Max. Frequency (GHz) 19
Max. Voltage @60Hz (V RMS) 16800
Mechanical Data
Min. Bend Radius (mm) 3.175
Weight (kg/100m) 15.58
Environmental Data
Temperature Range (℃) -55~+100
RoHS Compliant
Attenuation and Power
Frequency (GHz) Attenuation (dB/m) Power (Watts cW@20℃)
0.50 0.14 951.8
1.00 0.21 653.3
5.00 0.57 260.0
10.00 0.89 169.8
18.00 1.31 116.3
26.5 ---- ----
40.00 ---- ----
50.00 ---- ----
65.00 ---- ----
90.00 ---- ----
Applications

  • MRI infrastructure trunks – Primary RF cabling between transmitter rooms and magnet vaults

  • High-power broadcast – Main feeder lines from kW-class transmitters to antennas

  • Radar transmit chains – High-power output from magnetrons/TPAs to circulators

  • Particle accelerator RF – Long distribution lines to klystrons and cavity systems

  • Industrial RF plants – 50kW+ plasma systems, materials processing backbone

  • Test range cabling – Permanent high-power reference lines, dummy load feeds

FAQ

Q: How does SR-250C-SP differ from smaller semi-rigid coaxial cables like 0.141C-SP?

A: SR-250C-SP is designed for 15+ meter backbone runs with 653.3W power handling and 0.21 dB/m loss at 1 GHz, while 0.141C-SP serves shorter module interconnects (<20 ft) with higher attenuation and lower power capacity.

Q: What makes this semi-rigid coaxial cable ideal for high-power transmitter output stages?

A: 16.8kV voltage rating, 653.3W CW handling, ultra-low 0.21 dB/m loss at 1 GHz, and ±0.5Ω impedance control ensure maximum power transfer from kW-class amplifiers to antennas or loads without thermal runaway or reflections.

Q: Can SR-250C-SP be field-formed or requires factory pre-forming?

A: Factory pre-forming recommended due to 0.125" minimum bend radius and infrastructure-scale dimensions. We manufacture from your infrastructure CAD files with precise routing for equipment racks, cable trays, and vault penetrations.

Q: What's the magnetic performance verification process?

A: Non-magnetic certification includes <0.1% attraction testing in 3T fields. Material analysis confirms no ferromagnetic alloys (NiFe, steel) in conductor, shield, or support structures.

Q: What production capabilities support large-scale deployments?

A: Low MOQ prototyping (5 pcs) through high-volume OEM production. 50+ assemblies: 3-4 weeks. Annual supply agreements with dedicated capacity for broadcast/radar infrastructure programs.

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0.250" Silver Plated Semi‑Rigid Coaxial Cable SR‑250C-SP 50 Ohm Non‑Magnetic Cable

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Product Detail
Brand Name :
Bing Wire & Cable
Model Number :
SR-250C-SP
Certification :
ISO, RoHS, SGS
Place of Origin :
Shanghai, China
MOQ :
1 ft
Price :
Negotiable
Contact Supplier
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0.250 Silver Plated Semi‑Rigid Coaxial Cable SR‑250C-SP 50 Ohm Non‑Magnetic Cable
0.250 Silver Plated Semi‑Rigid Coaxial Cable SR‑250C-SP 50 Ohm Non‑Magnetic Cable
0.250 Silver Plated Semi‑Rigid Coaxial Cable SR‑250C-SP 50 Ohm Non‑Magnetic Cable
0.250 Silver Plated Semi‑Rigid Coaxial Cable SR‑250C-SP 50 Ohm Non‑Magnetic Cable
0.250 Silver Plated Semi‑Rigid Coaxial Cable SR‑250C-SP 50 Ohm Non‑Magnetic Cable
0.250 Silver Plated Semi‑Rigid Coaxial Cable SR‑250C-SP 50 Ohm Non‑Magnetic Cable
0.250 Silver Plated Semi‑Rigid Coaxial Cable SR‑250C-SP 50 Ohm Non‑Magnetic Cable

Shanghai Bing Wire & Cable Co., Ltd.

Verified Supplier
1 Years
shanghai, shanghai
Since 2005
Business Type :
Trading Company
Main Products :
Foam-Flex 034 Coax, HRF0.75-WB 34AWG Coax, SR-016 Semi Rigid Coaxial Cable
Total Annual :
12100000- 18600000
Employee Number :
11~50
Certification Level :
Verified Supplier
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