Belden H125A01 Series, 5000 m, H121 Coaxial Coaxial Cable 75 Ω, Black, Unterminated

RS Stock No.:: 644-621
Mfr. Part No.:: H125A01.005000
Brand:: Belden

Belden H125A01 Series, 5000 m, H121 Coaxial Coaxial Cable 75 Ω, Black, Unterminated

Subtotal (1 reel of 5000 metres)*

$28,041.42

(exc. GST)

$30,845.56

(inc. GST)

FREE delivery for orders over $60.00 ex GST

Stocked by manufacturer

Ready to ship from 23 June 2026

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

Reel(s)	Per Reel	Per Metre*
1 +	$28,041.42	$5.608

*price indicative

RS Stock No.:: 644-621
Mfr. Part No.:: H125A01.005000
Brand:: Belden

Specifications

Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Belden
	Product Type	Coaxial Cable
	Terminated/Unterminated	Unterminated
	Coaxial Type	H121
	American Wire Gauge	18AWG
	Outside Diameter	6.8mm
	Characteristic Impedance	75Ω
	Minimum Operating Temperature	-40°C
	Conductor Type	Solid
	Attenuation	1.8 dB
	Cable Length	5000m
	Maximum Operating Temperature	70°C
	Jacket Colour	Black
	Standards/Approvals	RoHS, EN 50290-2-20, EU CE Mark, EN 50117-1, EN 50117-10-2
	Series	H125A01
	Jacket Material	Polyethylene
	Conductor Material	Bare Copper

	Select all
	Brand Belden
	Product Type Coaxial Cable
	Terminated/Unterminated Unterminated
	Coaxial Type H121
	American Wire Gauge 18AWG
	Outside Diameter 6.8mm
	Characteristic Impedance 75Ω
	Minimum Operating Temperature -40°C
	Conductor Type Solid
	Attenuation 1.8 dB
	Cable Length 5000m
	Maximum Operating Temperature 70°C
	Jacket Colour Black
	Standards/Approvals RoHS, EN 50290-2-20, EU CE Mark, EN 50117-1, EN 50117-10-2
	Series H125A01
	Jacket Material Polyethylene
	Conductor Material Bare Copper

Datasheet - H125A01.005000

Belden H125A01 Series Coaxial Cable, 5000m Cable Length, 75Ω Characteristic Impedance - H125A01.005000

This coaxial cable is designed for signal transmission in industrial and electronic installations where a 75Ω characteristic impedance is required. Supplied on a bulk reel, it is intended for long runs and installations that need a continuous, unterminated cable with a polyethylene outer sheath suitable for general-site environments.

Features & Benefits

• 1.8dB attenuation delivers lower signal loss over distance
• 18AWG conductor supports stable current handling and signal integrity
• Solid bare copper conductor improves electrical continuity
• Black PE jacket resists common site abrasion and handling
• Rated to operate up to 70°C for elevated-temperature locations
• Complies with EN50117 and EN50290 standards for industry use

Applications

• Suitable for CCTV and video distribution systems requiring 75Ω impedance
• Ideal for broadcast signal feeds in studio and venue installations
• Used with RF test rigs and laboratory setups needing long continuous runs
• Can be used for analogue and digital video links in automation systems
• Suitable for bulk-reel deployment on site for electrical and mechanical contractors

How is the cable supplied for installation?

It is provided on a 5000 m bulk reel in an unterminated form to allow custom terminations on site.

What environmental temperature range can it withstand?

The cable is specified for use down to -40°C and up to 70°C for normal operation.

What is the conductor construction and its practical consequence?

The conductor is a single solid bare copper core, which offers consistent impedance and straightforward soldering or crimping for connectors.

Which certifications indicate suitability for regulated installations?

It meets RoHS requirements and carries CE marking alongside EN50117 and EN50290 standard compliance.