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  1. ›
  2. RF Communication Products
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  4. Coaxial Cables
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  6. TFC Cables
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  8. TFC Amphenol TWB1951 \
  9. TFC Amphenol TWB1951 \
    Amphenol

    TFC Amphenol TWB1951 \

    Stock Code: TWB1951

    A wireless feeder line that reaches up to 6000 MHz
    A 50 Ω coaxial feeder cable with a black polyethylene jacket, rated for the 30 ~ 6000 MHz band. Its tinned copper braid and APA tape shields carry the run between wireless communication devices.
    50 ± 3 ΩImpedance
    30 ~ 6000 MHzOperating Frequency
    80%Velocity of propagation
    4.95 mmOuter diameter
    49.5 mmMin. bend radius
    35 kg/kmWeight
    Key features
    6000MHz
    Top of the operating band
    The operating band starts at 30 MHz and reaches up to 6000 MHz.
    0.85kW
    Power handled at the low band
    Average power is 0.85 kW at 30 MHz and drops as the frequency climbs.
    3.50mm
    Two-layer shielding
    A 95% tinned copper braid sits over the bonded APA tape and closes at 3.50 mm.
    0.94mm
    Solid bare copper inner conductor
    The inner conductor is 0.94 mm solid bare copper and shows 25 Ω/km at 20°C.
    6.56dB
    Loss across the low band
    At 30 MHz the loss over 100 meters is 6.56 dB, climbing to 36.42 dB at 900 MHz.
    49.5mm
    Pulling through tight bends
    The minimum bend radius is 49.5 mm, and the cable should not go tighter than that in duct turns.
    Out in the field
    Polyethylene outer jacketThe black polyethylene jacket closes the cable from the outside.
    Foam dielectricThe foam polyethylene dielectric holds the inner conductor centered.
    Bonded APA tapeThe tape and braid layers stack over one another in a single body.
    Usage areasWireless communication systems·Radio communication·Data transmission systems
    Physical Specifications
    Inner Conductor Solid Bare Copper — 0.0370 in (0.94 mm)
    Insulation (Dielectric) Foam Polyethylene — 0.110 in (2.79 mm)
    1st Outer Conductor Bonded APA Tape — 0.116 in (2.95 mm)
    2nd Outer Conductor 36 AWG, 95% Tinned Copper Braid — 0.138 in (3.50 mm)
    Jacket Black PE — 0.195 in (4.95 mm)
    Electrical Specifications
    Operating Frequency 30 ~ 6000 MHz
    Characteristic Impedance 50 ± 3 Ω
    Velocity of Propagation (Nom.) 80%
    Capacitance (Nom.) 25.4 nF/kft (83.3 nF/km)
    Inner Conductor Resistance @20°C 7.6 Ω/kft (25 Ω/km)
    Outer Conductor Resistance @20°C 4.9 Ω/kft (16 Ω/km)
    Mechanical Specifications
    Weight 23.5 lb/kft (35 kg/km)
    Minimum Bend Radius 1.95 in (49.5 mm)
    Attenuation and Average Power
    Attenuation / Average Power
    Frequency (MHz) 30 50 150 220 450 900 1500 1800 2000 2500 5800
    Attenuation (dB/100 ft) 2.00 2.58 4.47 5.41 7.76 11.10 13.84 15.91 16.60 18.65 28.90
    Attenuation (dB/100 m) 6.56 8.46 14.67 17.75 25.46 36.42 45.41 52.20 54.46 61.19 94.82
    Avg. Power (kW) 0.85 0.66 0.38 - - - - - - - -

    Datasheet

    TWB1951

    1.0pdf3/1/2018

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