Product Hierarchy
Product Hierarchy

9272 - 78Ω Twinax, #20 TC, PO, TC Braid, PVC Jkt, CM

78 Ohm Twinax, 20 AWG stranded (7x28) .038" tinned copper conductors, polyethylene insulation, tinned copper braid shield (93% Coverage), PVC jacket.

Product Overview

Suitable Applications: RF

Physical Characteristics (Overall)

AWGStrandingMaterialConstruction n x DNominal DiameterNo. of Conductors
207x28TC - Tinned CopperStranded0.038 in1
207x28TC - Tinned CopperStranded0.038 in
Conductor Count: 2
MaterialNominal Diameter
PE - Polyethylene0.0755 in
PE - Polyethylene0.0755 in
Color Chart
Outer Shield
TypeLayerMaterialCoverage [%]
Braid1Tinned Copper (TC)93%
Outer Jacket
MaterialNominal Diameter
PVC - Polyvinyl Chloride0.244 in

Construction and Dimensions

0.156 mm

Electrical Characteristics

Conductor DCR
Nominal Conductor DCRNominal Conductor DCR Conductor ResistanceNominal Outer Shield DCROuter Conductor DCR
9.5 Ohm/1000ft9.5 Ohm/1000ft3.4 Ohm/1000ft3.4 Ohm/1000ft
Nom. Capacitance Conductor to ConductorNom. Capacitance Conductor to Shield
19.7 pF/ft19.7 pF/ft
Nominal Inductance
0.020 µH/ft
Nominal Characteristic Impedance
78 Ohm
High Frequency (Nominal/Typical)
Frequency [MHz]Nom. Insertion Loss
1 MHz0.6 dB/100ft
10 MHz2.1 dB/100ft
50 MHz5.0 dB/100ft
100 MHz7.5 dB/100ft
200 MHz11 dB/100ft
400 MHz16 dB/100ft
Max. Delay SkewNominal DelayNominal Velocity of Propagation (VP) [%]
66 ns/100m1.54 ns/ft66%
UL Voltage Rating
300 V RMS

Temperature Range

UL Temp Rating: 60°C (UL AWM Style 2092)
Operating Temperature Range: -30°C To +75°C

Mechanical Characteristics

Bulk Cable Weight: 38 lbs/1000ft
Max. Pull Tension: 55 lbs
Min. Bend Radius/Minor Axis: 2.5 in


NEC/(UL) Compliance: CM
CEC/C(UL) Compliance: CM
UL AWM Style Compliance: AWM 2092 (300 V 60°C)
CPR Euroclass: Eca

Applicable Environmental and Other Programs

EU Directive 2000/53/EC (ELV): Yes
EU Directive 2003/11/EC (BFR): Yes
EU Directive 2011/65/EU (RoHS 2): No
EU Directive 2012/19/EU (WEEE): Yes
EU Directive Compliance: Yes
EU CE Mark: Yes
MII Order #39 (China RoHS): Yes


Suitability - Aerial: Yes - Black only, when supported by messenger wire
Suitability - Burial: No
Suitability - Hazardous Locations: No
Suitability - Indoor: Yes
Suitability - Outdoor: Yes - Black only

Flammability, LS0H, Toxicity Testing

UL Flammability: UL 1685 UL Loading
IEC Flammability: IEC 60332-1-2
UL voltage rating: 300 V RMS


Plenum (Y/N): No
Plenum Number: 89272

Related Part Numbers

Item #ColorPut-Up TypeLengthUPC
9272 006100BlueReel100 ft612825226246
9272 006500BlueReel500 ft612825226260
9272 006U500BlueUnReel500 ft612825226239
9272 0061000BlueReel1,000 ft612825226253
9272 006U1000BlueUnReel1,000 ft612825226222
Footnote: C - CRATE REEL PUT-UP.


Update and Revision: Revision Number: 0.336 Revision Date: 04-08-2022
Date: 2004-01-01
No accessories are available for this product