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Home > Products > Semi Rigid Coaxial Cables > 0.325'' Non-Magnetic Semi-Rigid Coaxial Cable RoHS Compliant 50 Ohm High Power Coax
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0.325'' Non-Magnetic Semi-Rigid Coaxial Cable RoHS Compliant 50 Ohm High Power Coax

Product Details

Place of Origin: Shanghai, China

Brand Name: Bing Wire & Cable

Certification: ISO, RoHS, SGS

Model Number: SR-325C

Document: SR-325C.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:
Solid PTFE
Outer Conductor:
Copper Tube
Impedance:
50 Ohm
Capacitance:
29.0 PF/ft
Outer Diameter:
0.325'' (8.255mm)
Cable Family:
Semi-Rigid Cable
Center Conductor:
Silver Plated Copper
Conductor Type:
Solid
Dielectric:
Solid PTFE
Outer Conductor:
Copper Tube
Impedance:
50 Ohm
Capacitance:
29.0 PF/ft
Outer Diameter:
0.325'' (8.255mm)
0.325'' Non-Magnetic Semi-Rigid Coaxial Cable RoHS Compliant 50 Ohm High Power Coax
Product Description

SR-325C is a 0.325 inch semi-rigid coaxial cable designed for high power RF and microwave applications. The cable features a silver plated copper center conductor (non-magnetic), PTFE dielectric insulation, and a copper tube outer conductor for stable performance and excellent shielding. The copper outer shield provides corrosion resistance, strong electromagnetic shielding, and reliable grounding, while the rigid construction ensures consistent 50 ohm impedance and minimal signal leakage. SR-325C is RoHS compliant, making it suitable for environmentally conscious projects and industrial standards. This cable is ideal for high power RF systems, microwave instrumentation, radar electronics, and precision laboratory setups. It can also be formed into fixed shapes for internal routing in microwave modules and test equipment. SR-325C can serve as a UT-325C alternative in many semi rigid cable assemblies, providing a non-magnetic solution for sensitive measurement systems.

Key Features
  • Non-Magnetic Silver Plated Copper Conductor - Prevents magnetic interference in sensitive RF and microwave measurement environments.
  • High Power Handling - 0.325 inch diameter allows for higher current and power capacity compared with smaller semi rigid cables.
  • Tinned Copper Tube Outer Shield - Provides excellent shielding against electromagnetic interference, corrosion resistance, and easy soldering for assembly.
  • Stable 50 Ohm Impedance - Maintains controlled 50 ohm characteristic impedance for standard applications.
  • RoHS Compliant - Meets environmental and safety standards for electronics manufacturing.
  • Rigid Construction for Precision Routing - Holds its shape for internal RF module routing, test fixtures, and microwave assemblies.
Specifications
Construction
ItemMaterialDiameter (in)Diameter (mm)
Centre ConductorSilver Plated Copper7*0.03127*0.7925
DielectricSolid PTFE0.2857.239
Outer ConductorCopper Tube0.325 +/- 0.0028.255 +/- 0.051
Electrical Data
Capacitance (pF/m)95.2
Impedance (Ohms)50 +/- 0.5
Velocity of Propagation (%)70.0
Max. Frequency (GHz)14
Max. Voltage @60Hz (V RMS)22800
Mechanical Data
Min. Bend Radius (mm)19.050
Weight (kg/100m)23.92
Environmental Data
Temperature Range (℃)-55~+90
RoHSCompliant
Attenuation and Power
Frequency (GHz)Attenuation (dB/m)Power (Watts cW@20℃)
0.500.111702.4
1.000.171156.5
5.000.45443.6
10.000.72283.5
18.00--------
26.5--------
40.00--------
50.00--------
65.00--------
90.00--------
Applications
  • High Power RF Systems - Suitable for radar, satellite, and other high power microwave communication equipment.
  • Microwave Instrumentation - Used in laboratory measurement systems, network analyzer setups, and test fixtures.
  • Antenna Test and Measurement - Commonly used for antenna evaluation, RF test fixtures, and microwave interconnect assemblies.
  • Aerospace and Defense Electronics - Applicable in avionics, radar electronics, and other systems requiring high reliability and non-magnetic performance.
  • Custom Semi Rigid Cable Assemblies - Used to produce high power RF jumper cables, precision microwave interconnects, and specialized semi rigid assemblies.
FAQ
Q: What is SR-325C coaxial cable?
A: SR-325C is a 0.325 inch semi-rigid coaxial cable with a silver plated copper center conductor (non-magnetic), PTFE dielectric, and copper tube outer shield. It is designed for high power RF and microwave applications and is RoHS compliant.
Q: Is SR-325C compatible with UT-325C cable?
A: Yes. SR-325C can be used as a UT-325C alternative in most semi-rigid cable assemblies, providing similar performance with a non-magnetic conductor.
Q: Why choose a non-magnetic coax cable?
A: Non-magnetic cables prevent magnetic interference in sensitive RF and microwave measurement environments, improving measurement accuracy and system stability.
Q: What is the power handling capability of SR-325C?
A: The 0.325 inch diameter and copper tube construction allow high power operation, max withstanding power is up to 1156.5 Watts cW@20℃ at 1GHz, suitable for radar, communication, and laboratory systems.
Q: Is SR-325C RoHS compliant?
A: Yes. All materials meet RoHS standards, making it suitable for environmentally conscious designs and industrial compliance.
Q: Can SR-325C be used to build RF cable assemblies?
A: Yes. SR-325C is commonly used to manufacture custom microwave jumper cables, high power RF test assemblies, and precision semi-rigid interconnects.
Q: Can connectors be installed on SR-325C?
A: Yes. Precision RF connectors can be terminated on SR-325C to create custom high power semi-rigid cable assemblies.
Q: Are custom lengths or custom impedance available?
A: Yes. SR-325C can be cut to length, and custom impedance versions can be produced to meet specialized system requirements
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