Circular Connectors - Housings

Image Part Number Description / PDF Quantity Rfq
21038811426

21038811426

HARTING

CONN RCP HSG ML 4P INLINE PNL MT

140

09156000303

09156000303

HARTING

CONN INSERT SHELL PNL MOUNT

5

21033011003

21033011003

HARTING

CONN INSERT SHELL MALE PNL MNT

100

21038411505

21038411505

HARTING

CONN PLUG HSNG MALE 5POS INLINE

9

19150000401

19150000401

HARTING

CONN INSERT SHELL INLINE

14

21038211830

21038211830

HARTING

CONN PLUG HSNG MALE 8POS INLINE

10

09156000308

09156000308

HARTING

CONN INSERT SHELL PNL MOUNT

10

21420100004401

21420100004401

HARTING

CONN INSERT SHELL FMALE PNL MNT

100

09156123101

09156123101

HARTING

CONN INSERT FEMALE 12POS

24

09150000401

09150000401

HARTING

CONN INSERT SHELL INLINE

48

09151000492

09151000492

HARTING

CONN INSERT SHELL F/M INLINE

5

21038811405

21038811405

HARTING

CONN RCPT HSNG MALE 4POS INLINE

163

09151000309

09151000309

HARTING

CONN INSERT SHELL INLINE PNL MNT

10

21033022000

21033022000

HARTING

CONN INSERT SHELL FMALE PNL MNT

120

21038813405

21038813405

HARTING

CONN RCPT HSG MALE 4P INLINE ANG

11

21033022001

21033022001

HARTING

CONN INSERT SHELL FMALE PNL MNT

117

21038212805

21038212805

HARTING

CONN PLUG HSNG FMALE 8POS INLINE

12

21038213805

21038213805

HARTING

CONN RCPT HSG MALE 8P INLINE ANG

10

21410000012

21410000012

HARTING

CONN INSERT SHELL PANEL MNT

46

09151000310

09151000310

HARTING

CONN INSERT SHELL INLINE PNL MNT

4

Circular Connectors - Housings

1. Overview

Circular connectors housings are electromechanical devices designed to protect and organize electrical contacts in circular configurations. They serve as mechanical support structures while providing environmental protection, electrical insulation, and strain relief. These housings are critical components in maintaining signal integrity and power transmission across diverse applications, from industrial automation to aerospace systems.

2. Main Types and Functional Classification

TypeFunctional FeaturesApplication Examples
Metal HousingsHigh durability, EMI/RFI shielding, vibration resistanceMilitary equipment, aerospace systems
Plastic HousingsLightweight, corrosion-resistant, cost-effectiveConsumer electronics, medical devices
Hybrid HousingsCombination of metal/plastic for optimized performanceAutomotive sensors, industrial machinery
High-Density HousingsMiniaturized contact arrangements with advanced insulationTelecom equipment, data centers

3. Structure and Components

Typical circular connector housings consist of: - Shell Body: Cylindrical main structure (metal/plastic) with mounting threads - Contact Cavities: Precision-machined compartments for terminal placement - Sealing System: Integrated gaskets/O-rings for IP65+ protection - Polarization Key: Mechanical feature preventing misalignment - Retention System: Threaded coupling or bayonet mechanisms - Cable Entry: Strain relief provisions with gland seals

4. Key Technical Specifications

ParameterImportance
Current Rating (A)Determines power transmission capacity
Voltage Withstand (V)Ensures dielectric strength
Operating Temperature (-40 C to +125 C)Defines environmental tolerance
Vibration Resistance (10-2000Hz)Crucial for harsh environments
IP Rating (IP67/IP68)Specifies ingress protection level
Contact Retention ForcePrevents accidental disconnection

5. Application Fields

  • Industrial Automation: Robotics, PLC systems
  • Medical Equipment: MRI machines, patient monitoring systems
  • Aerospace: Avionics, flight control systems
  • Telecommunications: 5G base stations, fiber optic equipment
  • Energy: Wind turbines, solar inverters

6. Leading Manufacturers and Products

ManufacturerRepresentative Product
TE ConnectivityDEUTSCH DT series metal housings
AmphenolHermetic circular connector enclosures
MolexT1 Mini sealed automotive housings
Phoenix ContactHeavy-duty QUICKON connectors

7. Selection Guidelines

Key considerations include: - Environmental factors (temperature, moisture, chemicals) - Mechanical requirements (vibration, shock, mating cycles) - Electrical parameters (current/voltage requirements) - Material compatibility (corrosion resistance needs) - Space constraints and mounting options - Cost vs. performance trade-offs Example: For underwater robotics applications, prioritize IP68-rated plastic housings with corrosion-resistant coatings and pressure sealing.

8. Industry Trends

Current development trends include: - Miniaturization for IoT device integration - Advanced polymer composites for weight reduction - Integrated smart sensors in connector housings - Enhanced EMI shielding for 5G applications - Sustainability focus on recyclable materials - Additive manufacturing enabling complex geometries

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