RS PRO, 100m, RG178B/U Coaxial, Unterminated50 Ω

RS Stock No.:: 906-0635
Distrelec Article No.:: 303-95-545
Brand:: RS PRO

RS PRO, 100m, RG178B/U Coaxial, Unterminated50 Ω

Subtotal (1 reel of 100 metres)*

£183.20

(exc. VAT)

£219.84

(inc. VAT)

FREE delivery for orders over £50.00

In Stock

24 unit(s) ready to ship
Plus 12 unit(s) ready to ship from another location
Plus 92 unit(s) shipping from 17 November 2025

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Reel(s)	Per Reel	Per Metre*
1 +	£183.20	£1.832

*price indicative

Alternative

This product is not currently available. Here is our alternative recommendation.

RS PRO, 25m, RG178B/U Coaxial, Unterminated50 Ω

RS Stock No.: 906-0626

1 Reel of 25 Metre(s)

£48.40

(exc. VAT)

£58.08

(inc. VAT)

RS Stock No.:: 906-0635
Distrelec Article No.:: 303-95-545
Brand:: RS PRO

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	RS PRO
	Terminated/Unterminated	Unterminated
	Coaxial Type	RG178B/U
	Outer Diameter	1.85mm
	CPR Certification	Fca
	Characteristic Impedance	50 Ω
	Attenuation	151 dB @ 1GHz
	Length	100m
	Sheath Colour	Brown
	Conductor Strand Type	Stranded
	Capacitance	95pF/m
	Maximum Operating Temperature	+200°C
	Size of Strands	0.102 mm
	Conductor Material	Silver Plated Copper Clad Steel
	Number of Strands	7
	Core Strands	7/0.1
	Operating Temperature Range	-70 → +200 °C
	Standards Met	Euroclass Eca
	Minimum Operating Temperature	-70°C
	Sheath Material	FEP
	Velocity ratio	69.5%
	Insulation Material	PTFE
	Shielding	Silver Plated Copper Braid

	Select all
	Brand RS PRO
	Terminated/Unterminated Unterminated
	Coaxial Type RG178B/U
	Outer Diameter 1.85mm
	CPR Certification Fca
	Characteristic Impedance 50 Ω
	Attenuation 151 dB @ 1GHz
	Length 100m
	Sheath Colour Brown
	Conductor Strand Type Stranded
	Capacitance 95pF/m
	Maximum Operating Temperature +200°C
	Size of Strands 0.102 mm
	Conductor Material Silver Plated Copper Clad Steel
	Number of Strands 7
	Core Strands 7/0.1
	Operating Temperature Range -70 → +200 °C
	Standards Met Euroclass Eca
	Minimum Operating Temperature -70°C
	Sheath Material FEP
	Velocity ratio 69.5%
	Insulation Material PTFE
	Shielding Silver Plated Copper Braid

COO (Country of Origin):: CN

RS Pro RG178 Coaxial Cable

What is a Coaxial Cable?

A coaxial cable is a specific type of cable that is made up from copper combined with other metal shield materials and components to block signal interference. They include one physical channel to carry the surrounding signal, usually accompanied with a layer of insulation.

RS Pro RG178 Coaxial Cable

The RG178/U Coaxial Cables are traditionally used for interconnecting telecoms industry equipment and data. This interconnection is useful for facilitating the transmission of radio frequency signals.

Features and Benefits

• A coaxial communication cable, great for communicating!
• Meets the requirements of MIL-C-17F
• Brown FEP (Fluorinated ethylene propylene) outer sheath
• Stranded flexible inner conductor of 7/0.10mm
• Silver plated copper clad steel inner conductor with PTFE Insulation

Typical Applications

• Transmitting signals for televisions and areal connections
• Transmitting signals of CCTV images
• Transmitting signals for broadband
• Connect satellite antenna facilities to homes and businesses

How do Coaxial Cables work?

Coaxial cables work through having concentric layers of electrical conductors and insulating material. The way that they are constructed is what ensures that a signal is enclosed within the cable and prevents any electrical noise from interfering with the signal.

Standards

MIL-C-17F, MIL-C-17G

RS Pro RG178-25 Coaxial Cable

This RS Pro coaxial cable has an outer diameter of 1.85mm and a reel length of 25m. This Coax cable has a capacitance of 95 pF/m, a velocity ratio of 69.5%.