Circular Connectors

Circular Connectors - Housings

Part Number	Description / PDF	Quantity
MS3474L144PL Souriau-Sunbank by Eaton	CONN RCPT HSNG MALE 4POS PNL MNT	0
MS27473T12B3BA Souriau-Sunbank by Eaton	8T 3C 3#16 PLUG	15
D38999/24FJ29SNL Souriau-Sunbank by Eaton	CONN RCPT HSG FMALE 29POS PNL MT	0
UTL5103G1P Souriau-Sunbank by Eaton	CONN PLG HSG F/M 4POS PNL MNT	22
UTGX1JC124P Souriau-Sunbank by Eaton	CONN RCPT HSG MALE 4POS INLINE	25
MS27472T10B99BA Souriau-Sunbank by Eaton	8T 7C 7#20 RECP	16
D38999/20KB35AA Souriau-Sunbank by Eaton	MILDTL 38999 III WALL MOUNT	0
UT0W71626PH6 Souriau-Sunbank by Eaton	CONN RCPT HSNG MALE 26POS PNL MT	0
MS27473T8B35A Souriau-Sunbank by Eaton	8T 6C 6#22D PLUG	170
UT0W02255SH Souriau-Sunbank by Eaton	CONN RCPT HSG FMALE 55POS PNL MT	0
UTGX1JC148S Souriau-Sunbank by Eaton	CONN RCPT HSG FMALE 8POS INLINE	0
UTGX6JC103P Souriau-Sunbank by Eaton	CONN PLG HSG MALE 3POS INLINE	0
MS27473T10F99A Souriau-Sunbank by Eaton	8T 7C 7#20 PLUG	0
MS27497T24B4B Souriau-Sunbank by Eaton	8T 56C48#20 8#16 RECP	29
UTG010-4S Souriau-Sunbank by Eaton	CONN RCPT HSNG FMALE 4POS PNL MT	199
MS27473T12B98AB Souriau-Sunbank by Eaton	8T 10C 10#20 PLUG	5
D38999/24FH32AN Souriau-Sunbank by Eaton	MILDTL 38999 III JAM NUT	0
MS27473T8B98A Souriau-Sunbank by Eaton	8T 3C 3#20 PLUG	27
UTP02028SH Souriau-Sunbank by Eaton	CONN RCPT HSG FMALE 28POS PNL MT	0
UT00128SH6 Souriau-Sunbank by Eaton	CONN RCPT HSNG FMALE 8POS PNL MT	21

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

Type	Functional Features	Application Examples
Metal Housings	High durability, EMI/RFI shielding, vibration resistance	Military equipment, aerospace systems
Plastic Housings	Lightweight, corrosion-resistant, cost-effective	Consumer electronics, medical devices
Hybrid Housings	Combination of metal/plastic for optimized performance	Automotive sensors, industrial machinery
High-Density Housings	Miniaturized contact arrangements with advanced insulation	Telecom 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

Parameter	Importance
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 Force	Prevents 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

Manufacturer	Representative Product
TE Connectivity	DEUTSCH DT series metal housings
Amphenol	Hermetic circular connector enclosures
Molex	T1 Mini sealed automotive housings
Phoenix Contact	Heavy-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