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0.056" Semi-Rigid Coaxial Cable 50 Ohm SR-056-STR RF Cable with Stranded Flex Core

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0.056" Semi-Rigid Coaxial Cable 50 Ohm SR-056-STR RF Cable with Stranded Flex Core

Outer Conductor : Copper Tube-100% coverage

Supply Ability : 5000ft 7days

Dielectric : Solid PTFE

MOQ : 1 ft

Center Conductor : Silver Plated Copper Clad Steel

Impedance : 50 Ohm

Delivery Time : 7-15 work days

Outer Diameter : 0.056'' (1.422mm)

Certification : ISO, RoHS, SGS

Capacitance : 95.2 pF/m

Model Number : SR-056-STR

Brand Name : Bing Wire & Cable

Conductor Type : Stranded

Place of Origin : Shanghai, China

Payment Terms : T/T,Western Union,Paypal

Price : Negotiable

Cable family : Semi-Rigid Cable

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Product Description

SR-056-STR is a specialized 0.056" 50-ohm semi-rigid coaxial cable featuring a stranded silver-plated copper-clad steel center conductor that provides exceptional flex fatigue resistance for applications requiring repeated handling, vibration endurance, or frequent reconfiguration. Unlike traditional solid-conductor semi-rigid cables that work-harden and crack after hundreds of bend cycles, the stranded SCCS core maintains electrical integrity through 10,000+ flex cycles while preserving the solid copper outer conductor's benefits of precise impedance control, excellent shielding (>95 dB), and formability for stable RF performance up to 111 GHz. This hybrid construction serves development labs, field service technicians, production test environments, and vibration-prone installations where cable longevity directly reduces maintenance costs and downtime.

Key Features

  • Stranded SCCS center conductor - 10,000+ flex cycles vs 500 for solid conductors

  • 0.056" flexible semi-rigid cable- 0.063 minimum bend radius, vibration resistant

  • 50-ohm ±4Ω impedance - VSWR <1.3:1 DC-18 GHz after repeated flexing

  • Solid copper outer conductor - >95 dB shielding, precise formability maintained

  • PTFE dielectric - 70% VOP, -55°C to +175°C operation post-flex fatigue

  • Low Attenuation - 1.17 dB/ft @ 10 GHz, 1.61 dB/ft @ 18 GHz typical

  • OEM custom lengths - Low MOQ for test lab and field service requirements

Specifications
Construction
Item Material Diameter (in) Diameter (mm)
Centre Conductor Silver Plated Copper Clad Steel 0.0113 0.2870
Dielectric Solid PTFE 0.036 0.914
Outer Conductor Copper Tube 0.056 +/- 0.002 1.422 +/- 0.051
Electrical Data
Capacitance (pF/m) 95.2
Impedance (Ohms) 50.0 +/- 4
Velocity of Propagation (%) 70.0
Max. Frequency (GHz) 111
Max. Voltage @60Hz (V RMS) 3000
Mechanical Data
Min. Bend Radius (mm) 1.600
Weight (kg/100m) 1.08
Environmental Data
Temperature Range (℃) -55~+175
RoHS Compliant
Attenuation and Power
Frequency (GHz) Attenuation (dB/m) Power (Watts cW@20℃)
0.50 0.8 107.3
1.00 1.2 75.4
5.00 2.7 33.0
10.00 3.8 23.0
18.00 5.3 16.8
26.5 6.5 13.6
40.00 8.2 10.9
50.00 9.3 9.6
65.00 10.9 8.3
90.00 13.1 6.9
Applications

  • RF development laboratories - Test cables for daily handling/reconfiguration cycles

  • Field service technicians - Portable test equipment surviving repeated setups

  • Vibration environments - Airborne test gear, vehicle-mounted RF systems

  • Production test fixtures - Stations requiring frequent cable repositioning

  • Wireless infrastructure - Temporary test cables during 5G base station deployment

  • Automotive radar development - Test harnesses with thermal cycling and flexing

  • Satellite ground testing - Feed cables reconfigured during antenna measurements

FAQ

Q: Why choose stranded center conductor over solid for test applications?
A: Stranded SCCS resists work-hardening and cracking after repeated flexing. Solid conductors fail after ~500 cycles; SR-056-STR maintains <0.1 dB VSWR shift after 10,000+ cycles at 1.6mm bend radius.

Q: Does stranded construction compromise semi-rigid benefits?
A: No - solid copper outer conductor preserves impedance control, shielding (>95 dB), and formability. Only center conductor is stranded for flex endurance; electrical specs match solid conductor versions.

Q: When to use SR-056-STR vs standard 0.056" semi-rigid coaxial cable?
A: Choose STR for >100 bend cycles, daily handling, vibration, or reconfiguration. Standard solid conductor sufficient for permanent static installations with minimal mechanical stress.

Q: What's the electrical performance trade-off?
A: Negligible - stranded maintains equivalent attenuation (<0.1 dB/ft difference) and power handling to 111 GHz. Primary benefit is mechanical longevity, not electrical superiority.

Q: Can SR-056-STR semi-rigid coaxial cable be factory pre-formed?
A: Yes, identical outer conductor formability to standard semi-rigid cable. Minimum 0.063" bend radius. Factory pre-forming recommended for production.


Product Tags:

0.056” RF Semi-Rigid Coaxial Cable

      

Semi-Rigid Coaxial Cable

      
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