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Current Location: HomeBelden Wire & CableBelden Coaxial CableBelden Twinax Cable, Computer and Instrumentation CableBelden 78 Ohm Twinax

Belden 78 Ohm Twinax

Part Number AWG SizeConductor StrandingNom. Dia. of Cond.Nom. DCR of Cond.Dielectric (in)Nom. O.D. (in)Nom. Imp.Nom. Cap. (pF/ft)Approx LBS/MFTNom. DCR of Shld.
9272 20 7/28 0.038 9.5O/M' 0.156 0.2440 78 19.7 40 3.4O/M'
89272 20 7/28 0.038 9.5O/M' 0.148 0.1980 78 18.4 38 3.9O/M'
9463 20 7/28 0.038 9.5O/M' 0.154 0.2380 78 19.7 39 4.1O/M'
Twinaxial Cable, 78 Ohm Cable
Belden

Twinax Ratings and Approvals:

  • UL AWM Style 2092: 300V, 60°C
  • UL AWM Style 2464: 300V, 80°C
  • Plenum-Rated: 200°C
  • Pennsylvania Department of Environmental Resources and United States Mine Safety and Health Administration Certification Spec: PMSHA P-7K-SC-182141 (select parts only)
  • NEC and CEC Ratings:
    • Non-Plenum: NEC Type CM Cable or CM, CL2 Cable; CEC Type CM Cable
    • Plenum: NEC Type CMP Cable; CEC Type CMP FT6 Cable

Twinax Construction:

  • Conductor: 20 AWG Stranded Tinned Copper
  • Insulation:
    • Non-Plenum: Polyethylene
    • Plenum: FEP Teflon
  • Jacket:
    • Non-Plenum: Blue PVC or Sunlight Resistant PVC
    • Plenum: Blue FEP Teflon
  • Color Code: Blue, Clear
  • Shield: Tinned Copper Braid Shield (93% Coverage) or Beldfoil (100% Coverage) with Tinned Copper Braid (55% Coverage)

Twinaxial Cable Applications:

  • Belden’s plenum-rated 78 Ohm Coax part is suitable for aerial applications when supported by a messenger wire.

LSC5FS-4

LSC5FS-4 Construction:

  • Pair Assembly: Conductors Twisted to varying lays
  • Cable Assembly: 4 Pairs Cabled with Separator
  • Tape: Foam Polypropylene (PE) 25% Overlap
  • Drain: 24 AWG Stranded Tinned Copper 
  • Tape: Flame Retardant Tape 25% Overlap
  • Tape: Fiberglass Tape 25% Overlap
  • Tape: Marker Tape 

Compliances:

  • Acid Gas Generation: MIL-DTL M24643C (4.8.23)
  • Halogen Content: MIL-DTL M24643C (4.8.23)
  • NES 713 Toxicity: MIL-DTL M24643C (4.8.27)
  • Flame Propagation: MIL-DTL M24643C (4.8.13)
  • Jacket Immersions: MIL-DTL M24643C (4.8.26)
  • Jacket Tear: MIL-DTL M24643C (4.8.20)
  • Heat Distortion: MIL-DTL M24643C (4.8.15)
  • Weathering: MIL-DTL M24643C (4.8.28)
  • QPL Approved: Ser. 05S/2015-226

Electrical Performance:

  • Voltage Rating: 300 Volts
  • Max. DC Resistance: 9.83Ω/100m
  • Max DC Resistance Unbalance: 5.0 %
  • Nominal Velocity of Propagation: 68 %
  • Max Propagation Delay Skew: 45 ns/100m

 

Category 5e Electricals Chart (Per ANSI/TIA 568-C.2)

 

Freq. Return Loss (dB) Attenuation (dB/100m) NEXT (dB/100m) PSNEXT (dB/100m) ACRF (dB/100m) PSACRF (dB/100m)
(MHz.) (Min) (Max) (Min) (Min) (Min) (Min)
1 20 2 65.3 62.3 63.8 60.8
4 23 4.1 56.3 53.3 51.7 48.7
8 24.5 5.8 51.8 48.8 45.7 42.7
10 25 6.5 50.3 47.3 43.8 40.8
16 25 8.2 47.3 44.3 39.7 36.7
20 25 9.3 45.8 42.8 37.7 34.7
25 24.3 10.4 44.3 41.3 35.8 32.8
31.25 23.6 11.7 42.9 39.9 33.9 30.9
62.5 21.5 17 38.4 35.4 27.8 24.8
100 20.1 22 35.3 32.3 23.8 20.8

 

Category Color Code:

 

Color Code
Pair 1 Blue - White/Blue
Pair 2 Orange - White/Orange
Pair 3 Green - White/Green
Pair 4 Brown - White/Brown

LSC5OS-4

LSC5OS-4 Construction:

  • Category 5 Defense-Link™ Shipboard Cable
  • Pair Assembly: Conductors Twisted to varying lays
  • Cable Assembly: 4 Pairs Cabled with Separator
  • Tape: Polypropylene (PE) 25% Overlap
  • Shield: Aluminum/Polyester
  • Braid: 36 AWG Tinned Copper

Compliances:

  • Acid Gas Generation: MIL-DTL M24643C (4.8.23)
  • Halogen Content: MIL-DTL M24643C (4.8.23)
  • NES 713 Toxicity: MIL-DTL M24643C (4.8.27)
  • Flame Propagation: MIL-DTL M24643C (4.8.13)
  • Jacket Immersions: MIL-DTL M24643C (4.8.26)
  • Jacket Tear: MIL-DTL M24643C (4.8.20)
  • Heat Distortion: MIL-DTL M24643C (4.8.15)
  • Weathering: MIL-DTL M24643C (4.8.28)
  • QPL Approved: Ser. 05S/2015-226

Electrical Performance:

  • Voltage Rating: 300 Volts
  • Max. DC Resistance: 9.83Ω/100m
  • Max DC Resistance Unbalance: 5.0 %
  • Nominal Velocity of Propagation: 68 %
  • Max Propagation Delay Skew: 45 ns/100m

 

Category 5e Electricals Chart (Per ANSI/TIA 568-C.2)

 

Freq. Return Loss (dB) Attenuation (dB/100m) NEXT (dB/100m) PSNEXT (dB/100m) ACRF (dB/100m) PSACRF (dB/100m)
(MHz.) (Min) (Max) (Min) (Min) (Min) (Min)
1 20 2 65.3 62.3 63.8 60.8
4 23 4.1 56.3 53.3 51.7 48.7
8 24.5 5.8 51.8 48.8 45.7 42.7
10 25 6.5 50.3 47.3 43.8 40.8
16 25 8.2 47.3 44.3 39.7 36.7
20 25 9.3 45.8 42.8 37.7 34.7
25 24.3 10.4 44.3 41.3 35.8 32.8
31.25 23.6 11.7 42.9 39.9 33.9 30.9
62.5 21.5 17 38.4 35.4 27.8 24.8
100 20.1 22 35.3 32.3 23.8 20.8

 

Category Color Code:

 

Color Code
Pair 1 Blue - White/Blue
Pair 2 Orange - White/Orange
Pair 3 Green - White/Green
Pair 4 Brown - White/Brown

LSC5OS-4

LSC5OSW-4 Construction:

  • Category 5e Shielded Defense-Link™ Shipboard Cable
  • Pair Assembly: Conductors Twisted to varying lays
  • Cable Assembly: 4 Pairs Cabled with Separator
  • Gel: Cable Filled with Water Blocking
  • Both Tapes: Water Blocking Tape
  • Braid: 36 AWG Tinned Copper

Compliances:

  • Acid Gas Generation: MIL-DTL M24643C (4.8.23)
  • Halogen Content: MIL-DTL M24643C (4.8.23)
  • NES 713 Toxicity: MIL-DTL M24643C (4.8.27)
  • Flame Propagation: MIL-DTL M24643C (4.8.13)
  • Jacket Immersions: MIL-DTL M24643C (4.8.26)
  • Jacket Tear: MIL-DTL M24643C (4.8.20)
  • Heat Distortion: MIL-DTL M24643C (4.8.15)
  • Weathering: MIL-DTL M24643C (4.8.28)
  • QPL Approved: Ser. 05S/2015-226

Electrical Performance:

  • Voltage Rating: 300 Volts
  • Max. DC Resistance: 9.83Ω/100m
  • Max DC Resistance Unbalance: 5.0 %
  • Nominal Velocity of Propagation: 68 %
  • Max Propagation Delay Skew: 45 ns/100m

 

Category 5e Electricals Chart (Per ANSI/TIA 568-C.2)

 

Freq. Return Loss (dB) Attenuation (dB/100m) NEXT (dB/100m) PSNEXT (dB/100m) ACRF (dB/100m) PSACRF (dB/100m)
(MHz.) (Min) (Max) (Min) (Min) (Min) (Min)
1 20 2 65.3 62.3 63.8 60.8
4 23 4.1 56.3 53.3 51.7 48.7
8 24.5 5.8 51.8 48.8 45.7 42.7
10 25 6.5 50.3 47.3 43.8 40.8
16 25 8.2 47.3 44.3 39.7 36.7
20 25 9.3 45.8 42.8 37.7 34.7
25 24.3 10.4 44.3 41.3 35.8 32.8
31.25 23.6 11.7 42.9 39.9 33.9 30.9
62.5 21.5 17 38.4 35.4 27.8 24.8
100 20.1 22 35.3 32.3 23.8 20.8

 

Category Color Code:

 

Color Code
Pair 1 Blue - White/Blue
Pair 2 Orange - White/Orange
Pair 3 Green - White/Green
Pair 4 Brown - White/Brown

LSC5POS-4 Compose Construction:

LSC5POS-4

  • Category 5e Shielded Defense-Link ™ Shipboard Cable
  • Pair Assembly: Conductors Twisted to Varying Lays
  • Cable Assembly: 4 Pairs Cabled With Separator
  • 36 AWG Tinned Copper Braid
  • Tape: Polypropylene 25% Overlap

Compliances:

  • Acid Gas Generation: MIL-DTL M24643C (4.8.23)
  • Halogen Content: MIL-DTL M24643C (4.8.23)
  • NES 713 Toxicity: MIL-DTL M24643C (4.8.27)
  • Flame Propagation: MIL-DTL M24643C (4.8.13)
  • Jacket Immersions: MIL-DTL M24643C (4.8.26)
  • Jacket Tear: MIL-DTL M24643C (4.8.20)
  • Heat Distortion: MIL-DTL M24643C (4.8.15)
  • Weathering: MIL-DTL M24643C (4.8.28)
  • QPL Approved: Ser. 05S/2017-354

Electrical Performance:

  • Voltage Rating: 300 Volts
  • Max. DC Resistance: 9.83Ω/100m
  • Max DC Resistance Unbalance: 5.0 %
  • Nominal Velocity of Propagation: 68 %
  • Max Propagation Delay Skew: 45 ns/100m

 

Category 5e Electricals Chart (Per ANSI/TIA 568-C.2)

 

Freq. Return Loss (dB) Attenuation (dB/100m) NEXT (dB/100m) PSNEXT (dB/100m) ACRF (dB/100m) PSACRF (dB/100m)
(MHz.) (Min) (Max) (Min) (Min) (Min) (Min)
1 20 2 65.3 62.3 63.8 60.8
4 23 4.1 56.3 53.3 51.7 48.7
8 24.5 5.8 51.8 48.8 45.7 42.7
10 25 6.5 50.3 47.3 43.8 40.8
16 25 8.2 47.3 44.3 39.7 36.7
20 25 9.3 45.8 42.8 37.7 34.7
25 24.3 10.4 44.3 41.3 35.8 32.8
31.25 23.6 11.7 42.9 39.9 33.9 30.9
62.5 21.5 17 38.4 35.4 27.8 24.8
100 20.1 22 35.3 32.3 23.8 20.8

 

Category Color Code:

 

Color Code
Pair 1 Blue - White/Blue
Pair 2 Orange - White/Orange
Pair 3 Green - White/Green
Pair 4 Brown - White/Brown