Description

Belden 1855A Product Overview

Suitable Applications

• Digital Video
• 6 Gb/s UHDTV
• HD-SDI 1080p

Construction Details

RG Type:

• Mini 59

Conductor:

• Size: 23 AWG
• Stranding: Solid
• Nom. Diameter: 0.023 in
• Material: BC – Bare Copper

Insulation:

• Material: PE – Polyethylene (Foam)
• Nom. Insulation Diameter: 0.102 in (2.59 mm)
• Color Code: White

Outer Shield:

• Layer 1:
  • Type: Tape
  • Material: Tri-Laminate (Alum+Poly+Alum)
  • Trade Name: Duofoil®
  • Coverage: 100%
• Layer 2:
  • Type: Braid
  • Material: Tinned Copper (TC)
  • Coverage: 95%

Outer Jacket:

• Material: PVC – Polyvinyl Chloride
• Nom. Diameter: 0.159 in (4.04 mm)

Overall Cable Diameter (Nominal):

• 0.159 in (4.04 mm)

Electrical Characteristics

Return Loss:

• Frequency: 5 – 1600 MHz, Min. Return Loss: 23 dB
• Frequency: 1600 – 4500 MHz, Min. Return Loss: 21 dB
• Frequency: 4500 – 6000 MHz, Min. Return Loss: 15 dB

Attenuation:

• Frequency: 1 MHz, Nom. Attenuation: 0.39 dB/100ft
• Frequency: 3.58 MHz, Nom. Attenuation: 0.78 dB/100ft
• Frequency: 5 MHz, Nom. Attenuation: 0.92 dB/100ft
• Frequency: 6 MHz, Nom. Attenuation: 1.00 dB/100ft
• Frequency: 7 MHz, Nom. Attenuation: 1.08 dB/100ft
• Frequency: 10 MHz, Nom. Attenuation: 1.2 dB/100ft
• Frequency: 12 MHz, Nom. Attenuation: 1.3 dB/100ft
• Frequency: 25 MHz, Nom. Attenuation: 1.8 dB/100ft
• Frequency: 67.5 MHz, Nom. Attenuation: 2.83 dB/100ft
• Frequency: 71.5 MHz, Nom. Attenuation: 2.93 dB/100ft
• Frequency: 88.5 MHz, Nom. Attenuation: 3.22 dB/100ft
• Frequency: 100 MHz, Nom. Attenuation: 3.39 dB/100ft
• Frequency: 135 MHz, Nom. Attenuation: 3.84 dB/100ft
• Frequency: 143 MHz, Nom. Attenuation: 4.00 dB/100ft
• Frequency: 180 MHz, Nom. Attenuation: 4.41 dB/100ft
• Frequency: 270 MHz, Nom. Attenuation: 5.44 dB/100ft
• Frequency: 360 MHz, Nom. Attenuation: 6.34 dB/100ft
• Frequency: 540 MHz, Nom. Attenuation: 7.85 dB/100ft
• Frequency: 720 MHz, Nom. Attenuation: 9.15 dB/100ft
• Frequency: 750 MHz, Nom. Attenuation: 9.31 dB/100ft
• Frequency: 1000 MHz, Nom. Attenuation: 10.89 dB/100ft
• Frequency: 1500 MHz, Nom. Attenuation: 13.38 dB/100ft
• Frequency: 2000 MHz, Nom. Attenuation: 15.64 dB/100ft
• Frequency: 2250 MHz, Nom. Attenuation: 16.68 dB/100ft
• Frequency: 3000 MHz, Nom. Attenuation: 19.65 dB/100ft
• Frequency: 4500 MHz, Nom. Attenuation: 24.35 dB/100ft
• Frequency: 6000 MHz, Nom. Attenuation: 28.97 dB/100ft

Electricals:

• Nom. Conductor DCR: 20.1 Ohm/1000ft
• Nom. Outer Shield DCR: 3.7 Ohm/1000ft (12 Ohm/km)
• Nom. Capacitance Cond-to-Shield: 16.3 pF/ft (53.5 pF/m)
• Nom. Characteristic Impedance: 75 Ohm
• Nom. Velocity of Prop.: 82%

Voltage:

• UL Voltage Rating: 300 V (CMR, CMG)

Mechanical Characteristics

Temperature:

• UL Temperature: 75°C
• Operating: -30°C to +75°C

Bend Radius:

• Installation Min.: 1.6 in (41 mm)

Max. Pull Tension:

• 33 lbs (15 kg)

Bulk Cable Weight:

• 17 lbs/1000ft

Standards and Compliance

Environmental Suitability:

• Indoor/Outdoor
• Indoor
• UV Resistance
• Aerial – Black only, when supported by messenger wire

Sustainability:

• CA Prop 65

Flammability / Reaction to Fire:

• UL1666 Vertical Shaft

CPR Compliance:

• CPR Euroclass: Eca
• CPR UKCA Class: Eca

NEC / UL Compliance:

• CMR

CEC / C(UL) Compliance:

• CMG

European Directive Compliance:

• EU CE Mark
• EU Directive 2015/863/EU (RoHS 2 amendment)
• REACH
• EU Directive 2011/65/EU (RoHS 2)
• EU Directive 2012/19/EU (WEEE)

UK Regulation Compliance:

• UKCA Mark

APAC Compliance:

• China RoHS II (GB/T 26572-2011)

History

Update and Revision:

• Revision Number: 0.471
• Revision Date: 04-24-2023

Belden 1855A Part Numbers