Product Hierarchy
Product Hierarchy

9815 - 100Ω Twinax, #20-1c TC/1c BC, PO, Duofoil® + 2 TC Braids, PE Jkt, Direct Burial

100 Ohm Twinax, 20 AWG stranded (7x28) .037" one tinned/ one bare copper conductors, polyethylene insulation, Duofoil® + tinned copper braid shield (95% coverage), high-density polyethylene jacket.

Physical Characteristics (Overall)

AWGStrandingMaterialConstruction n x DNo. of Conductors
207x28TC - Tinned CopperStranded1
207x28BC - Bare CopperStranded1
Conductor Count: 2
MaterialNominal Wall Thickness
PE - Polyethylene0.024 in
Color Chart
1Natural & Natural
Inner Jacket Material
MaterialNominal DiameterNominal Wall Thickness
PE - Polyethylene0.236 in0.035 in
Outer Shield Material
TypeLayerMaterialMaterial Trade NameCoverage [%]
Tape1Tri-Laminate (Alum+Poly+Alum)Duofoil®100%
Braid2Tinned Copper (TC)95%
Table Notes: Polyethylene Grease
Outer Jacket Material
MaterialNominal DiameterNominal Wall Thickness
PE - Polyethylene0.33 in0.034 in
Table Notes: HDPE

Electrical Characteristics

Conductor DCR
Nominal Conductor DCRNominal Outer Shield DCROuter Conductor DCR
9.5 Ohm/1000ft2 Ohm/1000ft2 Ohm/1000ft
Nom. Capacitance Conductor to ConductorNom. Capacitance Conductor to Other Conductor to ShieldNom. Capacitance Conductor to Shield
14.5 pF/ft23 pF/ft14.5 pF/ft
Nominal Inductance
0.155 µH/ft
Nominal Characteristic Impedance
100 Ohm
High Frequency (Nominal/Typical)
Frequency [MHz]Nom. Insertion Loss
1 MHz0.4 dB/100ft
10 MHz1.1 dB/100ft
50 MHz2.5 dB/100ft
100 MHz4.1 dB/100ft
200 MHz6.4 dB/100ft
400 MHz10.2 dB/100ft
Max. Delay SkewNominal DelayNominal Velocity of Propagation (VP) [%]
66 ns/100m1.54 ns/ft66%
High Freq
Frequency [MHz]
1 MHz
10 MHz
50 MHz
100 MHz
200 MHz
400 MHz
Non-UL Voltage Rating
600 V RMS
Electrical Characteristics Notes: Capacitance conductor to shield: 23.0 pF/ft

Temperature Range

Operating Temp Range: -55°C To +80°C

Mechanical Characteristics

Bulk Cable Weight: 62 lbs/1000ft
Max. Pull Tension: 115 lbs
Min Bend Radius/Minor Axis: 3.5 in


CPR Euroclass: Fca

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 II): Yes
EU Directive 2012/19/EU (WEEE): Yes
EU Directive 2015/863/EU: Yes
EU Directive Compliance: EU Directive 2003/11/EC (BFR)
EU CE Mark: Yes
EU RoHS Compliance Date (yyyy-mm-dd): 2004-01-01
MII Order #39 (China RoHS): Yes


Suitability - Burial: Yes


Plenum (Y/N): No

Part Number

Item #ColorPutup TypeLengthUPC
9815 010500BlackReel500 ft612825259053
9815 0101000BlackReel1,000 ft612825259039
Footnote: C - CRATE REEL PUT-UP.

Product Notes

Notes: Polyethylene flooding grease applied over outer shield.


Update and Revision: Revision Number: 0.286 Revision Date: 09-30-2020
Date: 2004-01-01
No accessories are available for this product