Circular Connectors

Circular Connectors - Adapters

Image	Part Number	Description / PDF	Quantity	Rfq
	425S5S5S Switchcraft / Conxall	CONN Y-ADPT 5P-5/5P F-F/F INLINE	0
	EHSVHS2PKG Switchcraft / Conxall	CONN ADAPTER 4P-4P F-F PNL MNT	0
	585P5S5S Switchcraft / Conxall	CONN T-ADPT 5P-5/5P M-F/F INLINE	0
	586S6S6S Switchcraft / Conxall	CONN T-ADPT 6P-6/6P F-F/F INLINE	0
	EH6MD2PKG Switchcraft / Conxall	CONN ADAPTER 6P-6P F-F PNL MNT	0
	324P4S4S Switchcraft / Conxall	CONN Y-ADPT 4P-4/4P M-F/F INLINE	0
	EHSVHS2B Switchcraft / Conxall	CONN ADAPTER 4P-4P F-F PNL MNT	0
	582S2S2S Switchcraft / Conxall	CONN T-ADPT 2P-2/2P F-F/F INLINE	0
	584S4S4S Switchcraft / Conxall	CONN T-ADPT 4P-4/4P F-F/F INLINE	0
	583S3S3S Switchcraft / Conxall	CONN T-ADPT 3P-3/3P F-F/F INLINE	0
	426S6S6S Switchcraft / Conxall	CONN Y-ADPT 6P-6/6P F-F/F INLINE	0
	582P2S2S Switchcraft / Conxall	CONN T-ADPT 2P-2/2P M-F/F INLINE	0
	324S4S4S Switchcraft / Conxall	CONN Y-ADPT 4P-4/4P F-F/F INLINE	0
	389PKG Switchcraft / Conxall	CONN ADAPTER 3P-3P F-F INLINE	0
	EHSVHS2BPKG Switchcraft / Conxall	CONN ADAPTER 4P-4P F-F PNL MNT	0
	425P5S5S Switchcraft / Conxall	CONN Y-ADPT 5P-5/5P M-F/F INLINE	0
	323S3S3S Switchcraft / Conxall	CONN Y-ADPT 3P-3/3P F-F/F INLINE	0
	586P6S6S Switchcraft / Conxall	CONN T-ADPT 6P-6/6P M-F/F INLINE	0
	322S2S2S Switchcraft / Conxall	CONN Y-ADPT 2P-2/2P F-F/F INLINE	0
	583P3S3S Switchcraft / Conxall	CONN T-ADPT 3P-3/3P M-F/F INLINE	0

Circular Connectors - Adapters

1. Overview

Circular connectors-adapters are electromechanical devices enabling seamless signal/power transmission between components with different interface standards. Defined by IEC 60512 standards, these adapters feature cylindrical housings with multiple contact points, offering critical bridging solutions in complex systems. Their importance spans across aerospace, industrial automation, and medical equipment, where they ensure interoperability while maintaining signal integrity under harsh conditions.

2. Major Types & Functional Classification

Type	Functional Features	Application Examples
MIL-DTL-5015 Adapters	Threaded coupling, 4-95 contacts, vibration resistance	Military communication systems
MIL-DTL-38999 Adapters	High-density, environmental sealing (IP67)	Aerospace sensor interfaces
USB-C Circular Adapters	Hybrid signal/power transmission, reversible design	Industrial IoT devices
BNC-TNC Adapters	Bayonet/ threaded coupling, 0-11GHz frequency range	RF test equipment

3. Structural Composition

Typical construction includes: - Metal housing: Aluminum alloy or stainless steel with plating (nickel/gold) - Contact elements: Phosphor bronze with precision-machined contact areas - Insulation: High-temperature resistant thermoplastics (operating range: -55 C to +200 C) - Sealing system: Multi-lip elastomer gaskets for IP68 protection - Mating interface: Polarized keying system preventing misalignment

4. Key Technical Parameters

Parameter	Importance
Current Rating (1-50A)	Determines power transmission capacity
Contact Resistance ( 5m )	Impacts signal fidelity
Dielectric Withstanding Voltage (500V-5kV)	Ensures electrical safety
Insertion Loss ( 0.5dB)	Microwave signal integrity
Shock Resistance (50G-150G)	Survivability in extreme environments
Durability (500-10,000 mating cycles)	Lifecycle cost efficiency

5. Application Fields

Key industries include: - Aerospace: Flight control systems (e.g., Boeing 787 sensor networks) - Industrial Automation: Siemens SIMATIC controllers interconnection - Medical Equipment: MRI machine RF connectors (Philips Ingenia series) - Telecommunications: 5G base station antenna interfaces - Transportation: High-speed train diagnostic systems (Siemens Velaro)

6. Leading Manufacturers

Manufacturer	Representative Product
Amphenol Aerospace	Serie 801 MIL-DTL-38999 Adapter
TE Connectivity	DEUTSCH DT06-6P Adapter
ITT Cannon	C Series C63EA-20-19P
Molex	MX150L Adapter System

7. Selection Guidelines

Key considerations: - Electrical Requirements: Match current/voltage ratings with system needs - Environmental Conditions: Consider temperature range, corrosion resistance - Mechanical Compatibility: Verify thread types (UNF/Metric) and keying - Standard Compliance: MIL-STD-810, ISO 6722 certification - Maintenance Factors: Evaluate ease of field repairability

8. Industry Trend Analysis

Current developments show: - Miniaturization: 30% size reduction in USB-C hybrid adapters - High-speed Data: 40Gbps+ transmission rates in new RF adapters - Smart Integration: Embedded sensors for condition monitoring - Material Innovation: Graphene-coated contacts reducing resistance by 40% - Standardization: Growing adoption of IEC 61076-1 universal interface standard