Circular Cable Assemblies

Image	Part Number	Description / PDF	Quantity	Rfq
	1300621142 Woodhead - Molex	MC 3P M/MFE 23M 14/3 TPE FLX	0
	1300390220 Woodhead - Molex	MIC 5P F/FR BPM DNET DROP 1M	0
	1200690134 Woodhead - Molex	MIC 5P M/MP 5M 90D DC 360 SHLD	0
	1300100003 Woodhead - Molex	MC 2P MFE 6' 90/ST #16 STOOW	0
	1300620167 Woodhead - Molex	MC 4P M/MFE 90/ST 1M 16/4 SS8	0
	1300621109 Woodhead - Molex	MC 4P M/MFP TRIKEY 360S 14M 12/4	0
	1300080250 Woodhead - Molex	MC 12P MP 60M 16/12 PVC	0
	1300620120 Woodhead - Molex	MC 4P M/MFE 1M #14/4 GRAY PVC	0
	1300131004 Woodhead - Molex	MC 4P FR 12IN. 16/1 PVC SS 316	0
	1200660568 Woodhead - Molex	MIC 5P M/MFE 1M 22/5 PVC	0
	1200800451 Woodhead - Molex	MIC 5P MFE ULOCK .6M 22/5 PVC	0
	1200800382 Woodhead - Molex	MIC 5P MFE ULOCK 1M ST/90 22/5	0
	1200730033 Woodhead - Molex	MIC/MC 3P MFE 3' 18/3 F-MIC-90	0
	1300131142 Woodhead - Molex	MC 3P F/FR 0.5M 18/1 PVC	0
	1300250454 Woodhead - Molex	MC 5P M/MFE 3M ST/ST SS TRUNK	0
	1201080635 Woodhead - Molex	M12 4P(D) MM ST/RJ45 12M SHLD TP	0
	1300101507 Woodhead - Molex	MC 3P MFE 4' 16/3 PVC	0
	1300000168 Woodhead - Molex	QC 3P MP 30' 14/3 SO CORD	0
	1300390078 Woodhead - Molex	DNET OPEN/MC 5P MALE ST 0.5M M	0
	1201080626 Woodhead - Molex	MIC 4P M/ME D-CODED 6M SHLD TPE	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.