Circular Cable Assemblies

Part Number	Description / PDF	Quantity
0848639001 Woodhead - Molex	CBL ASSY 5POS F TO WIRE 3.25'	0
1300250438 Woodhead - Molex	MC 5P M/MFE 50M ST/ST TRUNK FL	0
1200880090 Woodhead - Molex	NC 3P M/MFE ST/90 15CM SNAP	0
1300280377 Woodhead - Molex	MIC 5P MA ULOCK TO FE M12 1M GRA	0
1300250519 Woodhead - Molex	MC 5P FP 2M 90D TRUNK FLEX	0
1200840034 Woodhead - Molex	MIC 5P MR 1M 1/2NPT #22 PVC	0
1300420025 Woodhead - Molex	MIC 4P FP ST 5M #18-2 SHLD FF	0
1200980112 Woodhead - Molex	CSE M12 PRO 5P BC MA RA PUR 10M	0
1200740095 Woodhead - Molex	MIC 3P FR 12IN. 18/1 PVC	0
1200010666 Woodhead - Molex	M12 S/END 4P F ST PVC 5M KURAMO	24
1300080368 Woodhead - Molex	MC 9P MP 12' 16/9 PVC	0
1300640058 Woodhead - Molex	QC 3P M/MFE ST/ST SK 0.8M 10/3	0
1200660558 Woodhead - Molex	MIC 4P M/MFE 4M 90/ST 18/4 SJO	0
1300621039 Woodhead - Molex	MC 3P M/MFE 1M 90/ST 14/3 TPE RE	0
1300610139 Woodhead - Molex	MC 4P M/MP 7M STR 16/4 GRAY	0
1200730131 Woodhead - Molex	MIC 3P M/MFE 15' 18/3 TPE	0
1200662037 Woodhead - Molex	MIC 4P M/MFE 10M #18AWG TPE	0
1300100368 Woodhead - Molex	MC 3P MFE 25' ST/90 #16 STOOW	0
1300060194 Woodhead - Molex	MC 2P MP 6' 90D 16/2 PVC	0
1200660806 Woodhead - Molex	MIC 3P M/MFE .6M 18/3 SJOOW	0

Circular Cable Assemblies

1. Overview

Circular Cable Assemblies are engineered interconnect solutions designed to transmit electrical signals or power through circular-shaped connectors. These assemblies combine multiple wires or cables terminated with circular connectors, ensuring reliable connectivity in demanding environments. Their importance spans across industries requiring robust, high-density, and high-performance connections, particularly in applications where space constraints and environmental resilience are critical.

2. Main Types and Functional Classification

Type	Functional Features	Application Examples
Circular Push-Pull	Quick-mating design with mechanical locking	Industrial automation, medical devices
Circular Threaded	Vibration-resistant threaded coupling	Aerospace, military equipment
Waterproof Circular	IP67+ sealing against liquids and dust	Outdoor telecom equipment, underwater sensors
High-Density Circular	Miniaturized contacts for compact designs	Avionics, robotics

3. Structure and Components

A typical circular cable assembly consists of:

Conductors: Copper/aluminum for signal/power transmission
Insulation: PVC/TPE/PUR jackets for dielectric protection
Shielding: Braided copper or foil for EMI/RFI protection
Connector Housing: Metal/plastic shells with precision contacts
Retention System: Latches, threads, or bayonet couplings

Modular designs allow customization with hybrid signal/power/RF configurations.

4. Key Technical Specifications

Parameter	Importance
Current Rating (Amps)	Determines power transmission capacity
Voltage Rating (Volts)	Defines dielectric strength and safety margins
Contact Resistance (m )	Impacts signal integrity and power efficiency
Operating Temperature (-40 C to +125 C)	Ensures reliability in extreme environments
Mating Cycles (1000-10,000)	Indicates mechanical durability
IP Rating (IP65-IP68)	Defines environmental protection level

5. Application Fields

Primary industries include:

Industrial Automation: PLCs, CNC machines, robotic arms
Telecommunications: 5G base stations, fiber optic enclosures
Medical Equipment: MRI scanners, patient monitoring systems
Aerospace: Avionics, flight control systems
Transportation: Rail signaling systems, EV charging stations

Case Study: In automotive manufacturing, circular assemblies enable high-vibration resistance connections in robotic welding cells operating 24/7.

6. Leading Manufacturers and Products

Manufacturer	Representative Product
TE Connectivity	DEUTSCH DT Series circular connectors
Amphenol	CIRCULAR C Series high-density connectors
Molex	Circular Rast 55 series for industrial control
Delphi	Weatherproof automotive circular connectors

7. Selection Guidelines

Key considerations:

Electrical requirements (current/voltage profiles)
Environmental conditions (temperature, moisture, chemical exposure)
Mechanical demands (vibration, mating cycles, cable bend radius)
Space constraints (connector size and orientation)
Industry-specific certifications (e.g., MIL-STD, UL, RoHS)

Recommend verifying compatibility with existing infrastructure and performing thermal cycling tests for critical applications.

8. Industry Trends

Emerging developments include:

Miniaturization while maintaining high contact density
Integration of fiber optics and high-speed data transmission
Adoption of composite materials for weight reduction
Growing demand for waterproof connectors in outdoor IoT deployments
Standardization of hybrid power/signal interfaces in EV charging

Market forecasts predict 8.2% CAGR through 2027 driven by industrial IoT and 5G infrastructure investments.