Belden2178A

Product Number: 2178A

Mini Bundled 16 Coax, 23 AWG BC, Shielded, CMR

Bundled Miniature, 23 AWG solid .023” bare copper conductors, solid copper, gas-injected foam HDPE insulation, Duofoil® + tinned copper braid shield (95% coverage), overall PVC jacket.

Availability: Global
Status: Discontinued
Orderable items: 1

Ships from and sold by A5 IT.

Part numbers

2178A is a product family. Each item number below is a separate orderable part — colour, put-up and length differ.

Item #	Color	Putup Type	Length	Footnote	Order
2178A B59N1000	Black, Matte	Reel w/Small Barrel	1,000 ft	C	Order online

Specifications

Product Overview

Suitable Applications	SMPTE 2081-1 6 Gb/s UHDTV, SMPTE 424M 3 Gb/s HD-SDI 1080p, SDI/HDTV Digital Video, High Definition (HD), Standard Definition (SDI)

Product Life Cycle

Life Cycle	Discontinued - the product is no longer manufactured
Discontinuation Announcement Date	2017-07-10

Construction Details

RG Type	Mini 59
Insulation Table Notes	Gas Injected

Conductor

Size	23
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	Brown #1, Red #2, Orange #3, Green #4, Yellow #5, Blue #6, Violet #7, Gray #8, White #9, Black #10, Tan #11, Pink #12, Gray #13, Gray #14, Gray #15, Gray #16

Inner Shield

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

Inner Jacket

Material	PVC - Polyvinyl Chloride
Nom. Diameter	0.159 in (4.04 mm)

Outer Jacket

Material	PVC - Polyvinyl Chloride
Nom. Diameter	0.917 in

Electrical Characteristics

Return Loss

Frequency	Min. Structural Return Loss
5-1600 MHz	23 dB
1600-4500 MHz	21 dB
4500-6000 MHz	15 dB

Attenuation

Frequency	Nom. Attenuation
1 MHz	0.4 dB/100ft
3.6 MHz	0.8 dB/100ft
10 MHz	1.2 dB/100ft
71.5 MHz	3.1 dB/100ft
135 MHz	3.8 dB/100ft
270 MHz	5.4 dB/100ft
360 MHz	6.2 dB/100ft
540 MHz	7.7 dB/100ft
720 MHz	9.1 dB/100ft
750 MHz	9.5 dB/100ft
1000 MHz	10.5 dB/100ft
1500 MHz	13 dB/100ft
2500 MHz	16.9 dB/100ft
3000 MHz	18.5 dB/100ft
4500 MHz	24.6 dB/100ft
6000 MHz	28.97 dB/100ft

Electricals

Nom. Conductor DCR	20.1 Ohm/1000ft (65.9 Ohm/km)
Nom. Inner Shield DCR	7.6 Ohm/1000ft (25 Ohm/km)
Nom. Capacitance Cond-to-Shield	16.5 pF/ft (54.1 pF/m)
Nom. Characteristic Impedance	75 Ohm
Nom. Velocity of Prop.	83%

Voltage

UL Voltage Rating	300 V RMS

Mechanical Characteristics

Max. Pull Tension	576 lbs (261 kg)
Bulk Cable Weight	388 lbs/1000ft (577 kg/km)

Temperature

Operating	-35°C To +75°C

Standards and Compliance

Environmental Suitability	Indoor/Outdoor, Indoor
Flammability / Reaction to Fire	UL1666 Vertical Shaft
NEC / UL Compliance	CMR
CEC / C(UL) Compliance	CMG.
European Directive Compliance	EU CE Mark, EU Directive 2015/863/EU (RoHS 2 amendment), EU Directive 2011/65/EU (RoHS 2), EU Directive 2012/19/EU (WEEE)
APAC Compliance	China RoHS II (GB/T 26572-2011)

Product Notes

Notes	Print legend includes sequential footage marks.

History

Update and Revision	Revision Number: 0.232 Revision Date: 07-30-2026
Footnote	C - CRATE REEL PUT-UP.

Resources

Belden 2178A technical datasheet