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
| 1855A 010500 | Black | Reel | 500 ft | 612825356950 |
| 1855A 0101000 | Black | Reel | 1,000 ft | 612825358503 |
| 1855A 010N1000 | Black | Reel w/Small Barrel | 1,000 ft | |
| 1855A 010Z1000 | Black | ReelTuff Box | 1,000 ft | 612825434993 |






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