Circular Connectors

Circular Connectors - Housings

Part Number	Description / PDF	Quantity
SJS720100 Socapex (Amphenol Pcd)	CONN PLUG HSG FMALE 1POS INLINE	0
SJS816100 Socapex (Amphenol Pcd)	CONN PLUG HSG FMALE 3POS INLINE	13
SJS860200 Socapex (Amphenol Pcd)	CONN RCPT HSNG MALE 9POS INLINE	0
SJS840300 Socapex (Amphenol Pcd)	CONN RCPT HSNG MALE 3POS INLINE	1
SJS816200 Socapex (Amphenol Pcd)	CONN RCPT HSNG MALE 3POS INLINE	22
SJS830220 Socapex (Amphenol Pcd)	CONN RCPT HSNG MALE 8POS PNL MNT	83
SJS616100 Socapex (Amphenol Pcd)	CONN PLUG HSG FMALE 3POS INLINE	10
SJS861400 Socapex (Amphenol Pcd)	CONN RCPT HSG MALE 12POS INLINE	119
SJS861200 Socapex (Amphenol Pcd)	CONN RCPT HSG MALE 10POS INLINE	0
SJS860910 Socapex (Amphenol Pcd)	CONN PLUG HSG FMALE 9POS INLINE	9
SJS720210 Socapex (Amphenol Pcd)	CONN RCPT HSNG MALE 1POS INLINE	0
SJS112110P Socapex (Amphenol Pcd)	CONN PLG HSG FMALE 12POS INLINE	35
SJS820220 Socapex (Amphenol Pcd)	CONN RCPT HSNG MALE 3POS INLINE	35
SJS860900 Socapex (Amphenol Pcd)	CONN RCPT HSNG MALE 9POS INLINE	21
SJS425110P Socapex (Amphenol Pcd)	CONN PLG HSG FMALE 25POS INLINE	20
SJS861800P Socapex (Amphenol Pcd)	CONN RCPT HSG MALE 6POS INLINE	25
SJS720200 Socapex (Amphenol Pcd)	CONN RCPT HSNG MALE 1POS INLINE	2
SJS870510 Socapex (Amphenol Pcd)	CONN PLUG HSNG MALE 5POS INLINE	25
SJS862200 Socapex (Amphenol Pcd)	CONN RCPT HSNG MALE 9POS INLINE	0
SJS860520 Socapex (Amphenol Pcd)	CONN RCPT HSNG MALE 5POS PNL MNT	8

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