Circular Cable Assemblies

Image Part Number Description / PDF Quantity Rfq
1300101743

1300101743

Woodhead - Molex

CBL ASSY 4POS MALE TO FMALE 0.5M

0

1200720387

1200720387

Woodhead - Molex

MIC 4P FP 6' 90D 18/4

0

1200795118

1200795118

Woodhead - Molex

CBL ASSEMBLY 12POS M TO WIRE 2M

24

1200665456

1200665456

Woodhead - Molex

CBL FMALE TO MALE 4POS 3.28'

15

1300100489

1300100489

Woodhead - Molex

CBL FMALE TO MALE 3POS 9.84'

0

1300100495

1300100495

Woodhead - Molex

CBL FMALE TO MALE 3POS 49.2'

2

1200660313

1200660313

Woodhead - Molex

CBL ASSEMBLY 4POS M TO FML 20'

0

1200700121

1200700121

Woodhead - Molex

CBL ASSEMBLY 4POS F TO WIRE 2M

11

1300060534

1300060534

Woodhead - Molex

CBL MALE TO WIRE LEAD 3POS 6'

2

1300480126

1300480126

Woodhead - Molex

CBL ASSY 4POS MALE TO M SHD 5M

18

1200660701

1200660701

Woodhead - Molex

CBL ASSEMBLY 4POS M TO FML 200'

0

1200651978

1200651978

Woodhead - Molex

CBL ASSEMBLY 5POS F TO WIRE 5M

8

1200659458

1200659458

Woodhead - Molex

CBL ASSEMBLY 8POS F TO WIRE 2M

24

1200661245

1200661245

Woodhead - Molex

CBL FMALE TO MALE 4POS 26.2'

0

1300610150

1300610150

Woodhead - Molex

CBL MALE TO WIRE LEAD 4POS 6.56'

9

1200660695

1200660695

Woodhead - Molex

CBL FMALE TO MALE 5/4POS 32.8'

4

1300030061

1300030061

Woodhead - Molex

CBL ASSEMBLY 4POS M TO WIRE 1'

2

1200870113

1200870113

Woodhead - Molex

CBL FMALE TO MALE 5POS 6.56'

0

1300100865

1300100865

Woodhead - Molex

CBL FMALE TO MALE 4POS 6.56'

4

1300130315

1300130315

Woodhead - Molex

CBL FMALE TO WIRE LEAD 4P 1'

5

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.

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