Product Hierarchy
Product Hierarchy

1865A - Serial Digital Coax, Sub-miniature, #25 Stranded BC, CMR

1865A-Serial Digital Coax, Sub-miniature

25 AWG stranded (19x37) .021" bare copper conductor, gas-injected foam HDPE insulation, Duofoil®; tinned copper braid shield (95% coverage), PVC jacket.

Product Overview

Environmental Space: Indoor - Riser

Physical Characteristics (Overall)

AWGStrandingMaterialNominal DiameterNo. of Coax
2519x37BC - Bare Copper0.021 in1
Conductor Count: 1
Conductor Size: 25 AWG
MaterialNominal Diameter
Gas-injected FHDPE - Foam High Density Polyethylene0.094 in
Outer Shield Material
TypeLayerMaterialMaterial Trade NameCoverage [%]
Tape1Aluminum/Polyester/AluminumDuofoil®100 %
Braid2TC - Tinned Copper95 %
Outer Jacket Material
MaterialNominal Diameter
PVC - Polyvinyl Chloride0.15 in

Electrical Characteristics

Conductor DCR
Nominal Conductor DCRNominal Conductor DCR Conductor ResistanceNominal Outer Shield DCROuter Conductor DCR
27.4 Ohm/1000ft27.4 Ohm/1000ft5.4 Ohm/1000ft5.4 Ohm/1000ft
Nom. Capacitance Conductor to Shield
16.5 pF/ft
Nominal Inductance
0.093 µH/ft
Nominal Characteristic Impedance
75 Ohm
Return Loss (RL)
Frequency [MHz]Minimum Return (RL)
5-850 MHz21 dB
850-3000 MHz18 dB
High Frequency (Nominal/Typical)
Frequency [MHz]Nom. Insertion Loss
1 MHz0.47 dB/100ft
3.58 MHz1 dB/100ft
5 MHz1.1 dB/100ft
7 MHz1.3 dB/100ft
10 MHz1.6 dB/100ft
67.5 MHz3.6 dB/100ft
71.5 MHz3.7 dB/100ft
88.5 MHz4.1 dB/100ft
100 MHz4.4 dB/100ft
135 MHz5 dB/100ft
143 MHz5.1 dB/100ft
180 MHz5.8 dB/100ft
270 MHz7.1 dB/100ft
360 MHz8.2 dB/100ft
540 MHz10.1 dB/100ft
720 MHz11.8 dB/100ft
750 MHz12 dB/100ft
1000 MHz13.9 dB/100ft
1500 MHz17 dB/100ft
2000 MHz19.6 dB/100ft
2250 MHz20.8 dB/100ft
3000 MHz24 dB/100ft
Nominal DelayNominal Velocity of Propagation (VP) [%]
1.24 ns/ft82 %
UL Voltage Rating
300 V RMS

Temperature Range

UL Temp Rating: 75°C
Operating Temp Range: -30°C To +75°C

Mechanical Characteristics

Bulk Cable Weight: 14 lbs/1000ft
Max Recommended Pulling Tension: 27 lbs
Min Bend Radius/Minor Axis: 1.5 in


NEC/(UL) Specification: CMR
CEC/C(UL) Specification: CMG
RG Type: Mini 59/U Type
Series Type: Sub-miniature 59

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
CA Prop 65 (CJ for Wire & Cable): Yes
MII Order #39 (China RoHS): Yes


Suitability - Indoor: Yes

Flammability, LS0H, Toxicity Testing

UL Flammability: UL1666 Vertical Shaft
UL voltage rating: 300 V RMS


Plenum (Y/N): No

Part Number

Item #ColorFootnote
1865A 0101000BlackC
1865A 0061000Blue, LightC
1865A 0011000BrownC
1865A 0081000Gray
1865A N3U1000Green, Mil
1865A 0031000Orange
1865A 0021000RedC
1865A 0071000VioletC
1865A 0091000WhiteC
1865A 0041000Yellow
Footnote: C - CRATE REEL PUT-UP.
Date: 2004-01-01
TB65: Digital Studio Cable Guide
No accessories are available for this product