SKU: RG178/50

RG178/50 PTFE/FEP Silver-plated Shielded 50 Ohm Coaxial Cable 1.78mm – BYC Cables

General Product Overview

Feature Specification
Product Model 178/50
Part Number RG178/50
Insulation Material PTFE (Polytetrafluoroethylene)
Jacket Material FEP (Fluorinated Ethylene Propylene)
Maximum Operating Voltage 1000 Volts
Operating Temperature Range -55 degrees Celsius to +125 degrees Celsius (-67 degrees Fahrenheit to +257 degrees Fahrenheit)
Minimum Bending Radius (Static) 10.0 Millimeters
Optimal Preservation Period Two Months
Standard Colors Natural (Insulation), Brown/Amber (Typical Jacket)

Precision Construction Details

Layer Component Material Specification Construction Design (n/mm) Diameter (mm)
1. Inner Conductor Silver-plated Copper Wire 7 x 0.102 0.306 plus or minus 0.02
2. Insulation Layer PTFE (Polytetrafluoroethylene) – Natural Not Applicable 0.86 plus or minus 0.05
3. Outer Conductor (Shield) Silver-plated Copper Braid (90 plus or minus 5 percent Coverage) 16 / 3 / 0.10 1.30 plus or minus 0.05
4. Outer Jacket FEP (Fluorinated Ethylene Propylene) Not Applicable 1.78 plus or minus 0.05

Electrical Performance Characteristics

Performance Parameter Technical Value
Characteristic Impedance (at 1ns) 50 plus or minus 4 Ohm
Capacitance 96 plus or minus 4 picofarads per meter
Propagation Velocity 70 plus or minus 2 percent
Voltage Standing Wave Ratio (0 to 6 Gigahertz) Compliant with Industry Standards
Maximum Operating Voltage 1000 Volts

Signal Attenuation Reference Table (DC to 6 GHz)

Frequency (Gigahertz) Maximum Attenuation (Decibels per meter)
0.1 GHz Less than or equal to 0.52 dB per meter
0.4 GHz Less than or equal to 1.20 dB per meter
1.0 GHz Less than or equal to 1.70 dB per meter
2.0 GHz Less than or equal to 2.42 dB per meter
3.0 GHz Less than or equal to 3.08 dB per meter
4.0 GHz Less than or equal to 3.63 dB per meter
5.0 GHz Less than or equal to 4.15 dB per meter
6.0 GHz Less than or equal to 4.80 dB per meter

Professional Industry Advantages

  • High-Temperature Reliability: Featuring a dual-fluoroplastic construction (PTFE and FEP), this cable maintains its electrical and mechanical properties in environments ranging from -55 degrees Celsius to +125 degrees Celsius, making it ideal for engine compartments and industrial sensors.
  • Superior Shielding Efficiency: The high-density silver-plated copper braiding ensures a shielding coverage of at least 85-95 percent, providing excellent protection against external Electromagnetic Interference (EMI) and maintaining high signal fidelity in dense wireless environments.
  • Optimized Signal Integrity: With a stable 50 Ohm characteristic impedance and silver-plated conductors, the RG178/50 minimizes signal loss and reflection, essential for high-performance microwave and Radio Frequency (RF) applications up to 6 Gigahertz.
  • Ultra-Compact Profile: With a finished outside diameter of only 1.78 mm, this cable is specifically designed for high-density routing in restricted spaces where weight and volume savings are critical, such as in professional avionics and handheld communication devices.
  • Exceptional Chemical Immunity: The FEP jacket provides a non-reactive barrier that is resistant to oils, chemicals, moisture, and ultraviolet radiation, ensuring a long operational service life in harsh outdoor or industrial environments.

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