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Home > Products > Semi Rigid Coaxial Cables > 0.141'' Semi-Rigid Cable Non-Magnetic 50 Ohm SR-141C-LL Low Loss RF Coaxial Cable
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0.141'' Semi-Rigid Cable Non-Magnetic 50 Ohm SR-141C-LL Low Loss RF Coaxial Cable

Product Details

Place of Origin: Shanghai, China

Brand Name: Bing Wire & Cable

Certification: ISO, RoHS, SGS

Model Number: SR-141C-LL

Document: SR-141C-LL.pdf

Payment & Shipping Terms

Minimum Order Quantity: 1 ft

Price: Negotiable

Delivery Time: 7-15 work days

Payment Terms: T/T,Western Union,Paypal

Supply Ability: 5000ft 7days

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Highlight:
Cable Family:
Semi-Rigid Cable
Center Conductor:
Silver Plated Copper
Conductor Type:
Solid
Dielectric:
Low Density PTFE
Outer Conductor:
Copper Tube, SP Or TP Variants
Impedance:
50 Ohm
Capacitance:
29.0 PF/ft
Outer Diameter:
0.141'' (3.581mm)
Cable Family:
Semi-Rigid Cable
Center Conductor:
Silver Plated Copper
Conductor Type:
Solid
Dielectric:
Low Density PTFE
Outer Conductor:
Copper Tube, SP Or TP Variants
Impedance:
50 Ohm
Capacitance:
29.0 PF/ft
Outer Diameter:
0.141'' (3.581mm)
0.141'' Semi-Rigid Cable Non-Magnetic 50 Ohm SR-141C-LL Low Loss RF Coaxial Cable
Product Description

SR-141C-LL is a low-loss version of the 0.141 inch semi-rigid coaxial cable, developed for RF and microwave systems where reduced signal attenuation and stable impedance are required. The cable uses a low-density PTFE dielectric, which lowers dielectric constant and signal loss compared with conventional solid PTFE designs. This helps improve signal transmission efficiency, particularly in microwave test and measurement environments.

The internal conductor structure features a silver-plated copper center conductor, providing high electrical conductivity and non-magnetic characteristics that are preferred in sensitive RF measurement applications. Surrounding the dielectric is a precision copper tube outer conductor, forming a continuous shield that prevents electromagnetic interference and maintains consistent impedance along the transmission line.

Because the outer conductor can be formed into fixed shapes, SR-141C-LL is widely used for internal RF interconnections in microwave equipment, test fixtures, laboratory instrumentation, and communication hardware. The cable follows the widely used 0.141 inch semi-rigid coaxial cable format, allowing it to serve as an alternative to UT-141C cables in many RF cable assembly and microwave design applications.

Key Features

Low-loss dielectric structure - Low-density PTFE insulation reduces dielectric loss and improves microwave signal efficiency.

Non-magnetic copper center conductor - Silver-plated copper conductor eliminates ferromagnetic materials while maintaining excellent conductivity.

Continuous copper tube shielding - Seamless outer conductor provides strong electromagnetic shielding and protects RF signals from interference.

Stable 50 Ohm transmission line - Designed for impedance-controlled RF systems and microwave communication equipment.

0.141 inch semi-rigid cable - Industry-standard cable size compatible with common semi-rigid connector interfaces.

High power capability - Supports high RF power levels due to efficient heat dissipation and solid conductor construction.

Formable rigid structure - Copper outer conductor allows precise bending and routing for internal microwave assemblies.

RoHS compliant materials - Manufactured using environmentally compliant materials suitable for international markets.

Specifications
Construction
Item Material Diameter (in) Diameter (mm)
Centre Conductor Silver Plated Copper 0.0403 1.0236
Dielectric Low Density PTFE 0.117 2.985
Outer Conductor Copper Tube 0.141 +/- 0.002 3.581 +/- 0.051
Electrical Data
Capacitance (pF/m) 95.2
Impedance (Ohms) 50 +/- 1.5
Velocity of Propagation (%) 77.0
Max. Frequency (GHz) 37
Max. Voltage @60Hz (V RMS) 8400
Mechanical Data
Min. Bend Radius (mm) 12.700
Weight (kg/100m) 4.77
Environmental Data
Temperature Range (℃) -55~+250
RoHS Compliant
Attenuation and Power
Frequency (GHz) Attenuation (dB/m) Power (Watts cW@20℃)
0.50 0.23 839.4
1.00 0.33 590.4
5.00 0.75 258.3
10.00 1.09 179.7
18.00 1.50 131.5
26.5 1.85 106.7
40.00 ---- ----
50.00 ---- ----
65.00 ---- ----
90.00 ---- ----
Applications

RF test and measurement systems - Internal signal routing for vector network analyzer setups and microwave laboratory equipment.

Microwave instrumentation - Used in signal generators, spectrum analyzers, and RF development platforms.

Antenna testing setups - Reliable microwave interconnect for antenna measurement fixtures and evaluation systems.

Scientific research equipment - Suitable for precision RF experiments and laboratory instrumentation requiring stable transmission lines.

Custom semi-rigid cable assemblies - Often used to produce microwave jumper cables, RF pigtails, and internal coaxial interconnect assemblies.

FAQ

Q: What is SR-141C-LL semi-rigid coax cable?

A: SR-141C-LL is a 0.141 inch semi-rigid coaxial cable designed for low-loss RF and microwave signal transmission. It uses a silver-plated copper center conductor, low-density PTFE dielectric insulation, and a seamless copper tube outer conductor to provide stable impedance and strong shielding performance.

Q: How does SR-141C-LL differ from standard SR-141C cable?

A: The main difference is the dielectric material. SR-141C-LL uses low-density PTFE, which reduces dielectric loss and improves signal transmission efficiency compared with conventional solid PTFE designs.

Q: Is SR-141C-LL compatible with UT-141C cable?

A: Yes. SR-141C-LL follows the 0.141 inch semi-rigid coaxial cable format, so it can serve as an alternative to UT-141C cables in many microwave cable assemblies and RF hardware designs.

Q: Why is a non-magnetic conductor used in this cable?

A: The silver-plated copper center conductor eliminates ferromagnetic materials. This helps avoid magnetic interference and is beneficial for sensitive RF measurement and instrumentation systems.

Q: What impedance does SR-141C-LL cable provide?

A: SR-141C-LL is designed with a characteristic impedance of 50 ohms, which is the standard impedance used in most RF and microwave communication systems.

Q: Can SR-141C-LL be used for RF cable assemblies?

A: Yes. The cable is commonly used to produce microwave jumper cables, RF test leads, coaxial pigtails, and custom semi-rigid cable assemblies.

Q: What types of systems typically use 0.141 inch semi-rigid coax cables?

A: These cables are widely used in RF test equipment, microwave instrumentation, antenna measurement setups, aerospace electronics, and laboratory research systems.

Q: Can semi-rigid coax cable be soldered directly to a PCB?

A: Yes. Semi-rigid cables can be soldered directly to RF circuit boards or microwave modules, which makes them suitable for controlled RF signal launches and test fixtures.

Q: Do you offer custom cable assemblies using SR-141C-LL?

A: Yes. We can supply cut-to-length cable, connectorized assemblies, and custom microwave interconnects based on project requirements.

Q: What information is needed when ordering semi-rigid cable assemblies?

A: Typical information includes cable length, connector types, operating frequency range, and required quantity so the correct RF cable assembly can be produced.