Pluggable Connectors - Accessories

Part Number	Description / PDF	Quantity
0679260040 Woodhead - Molex	CONN CAP FOR SATA CONN	8993
0745400401 Woodhead - Molex	CONN GUIDE ASSY FOR IPASS SERIES	0
0747650906 Woodhead - Molex	CONN ADPT LOOPBACK FOR SFP+ CONN	221
0675810011 Woodhead - Molex	CONN CONTACT FOR SATA HSG	18
0747630020 Woodhead - Molex	CONN ADPT LOOPBACK FOR QSFP CONN	122
0747480002 Woodhead - Molex	CONN LIGHT PIPE FOR SFP CAGE	620
0745480211 Woodhead - Molex	CONN EMI HSG FOR IPASS SERIES	339
0747360241 Woodhead - Molex	CONN HEAT SINK FOR XFP CAGES	21
0747500030 Woodhead - Molex	CONN LIGHT PIPE FOR QSFP+ CAGE	1300
0747280001 Woodhead - Molex	CONN LIGHT PIPE FOR SFP CAGE	0
0511450601 Woodhead - Molex	CONN HSG FOR SERIAL I/O CONN	0
0675810000 Woodhead - Molex	CONN CONTACT FOR SATA CONN	6002
0745480205 Woodhead - Molex	CONN EMI HSG FOR IPASS SERIES	14
0747200501 Woodhead - Molex	CONN ADPT LOOPBACK FOR SFP CONN	149
0747540021 Woodhead - Molex	CONN LIGHT PIPE FOR SFP+ CAGE	546
0747260001 Woodhead - Molex	CONN LIGHT PIPE FOR SFP CAGE	3526
0747630015 Woodhead - Molex	CONN ADPT LOOPBACK FOR QSFP CONN	0
0760105226 Woodhead - Molex	CONN SHELL FOR IPASS SERIES	0
0760107123 Woodhead - Molex	CONN SHELL FOR IPASS SERIES	0
0760105137 Woodhead - Molex	CONN SHELL FOR IPASS SERIES	0

Pluggable Connectors - Accessories

1. Overview

Pluggable connectors and their accessories are modular electronic components designed to enable rapid, tool-free connection and disconnection of electrical circuits. They serve as critical interfaces in systems requiring maintenance flexibility, scalability, and high reliability. These components are essential in telecommunications, data centers, industrial automation, and consumer electronics, where they ensure seamless signal and power transmission while minimizing downtime during upgrades or repairs.

2. Major Types & Functional Classification

Type	Functional Features	Application Examples
Fiber Optic Connectors (LC, SC, MPO)	High-speed optical signal transmission, low insertion loss	Data center backbone networks, 5G infrastructure
Copper Cable Connectors (RJ45, USB-C)	Power and data transmission over twisted pair or coaxial cables	Ethernet switches, IoT devices
High-Speed Backplane Connectors	Differential signaling with impedance control for >25 Gbps rates	Telecom routers, military radar systems
Modular Adapter Panels	Interface conversion (e.g., SC to LC), density optimization	Hybrid network cabinets, test equipment

3. Structure & Composition

Typical pluggable connectors consist of:

Contact Elements: Phosphor bronze or beryllium copper with gold/silver plating for conductivity
Insulation Housing: High-temperature resistant LCP or nylon for dimensional stability
Shielding Shell: Metal (aluminum, steel) or conductive polymer for EMI protection
Latching Mechanism: Push-pull, bayonet, or threaded coupling for secure mating

4. Key Technical Specifications

Parameter	Importance
Insertion Loss ( 0.5 dB)	Determines signal integrity in high-frequency applications
Voltage Standing Wave Ratio (VSWR 1.5:1)	Indicates impedance matching quality
Operating Temperature (-55 C to +125 C)	Defines environmental durability limits
Mating Cycles ( 500 cycles)	Directly impacts maintenance lifecycle costs
Current Carrying Capacity (1-10A per contact)	Dictates power delivery capabilities

5. Application Fields

Primary industries include:

Telecommunications: 5G base stations, optical line terminals
Data Centers: 400Gbps QSFP-DD interconnects, storage area networks
Industrial Automation: Programmable logic controllers (PLCs), sensor hubs
Medical Equipment: MRI machine data links, patient monitoring systems

Case Study: Google's AI server clusters utilize 800Gbps OSFP connectors for GPU interlinks, achieving 40% lower latency compared to traditional QSFP designs.

6. Leading Manufacturers & Products

Manufacturer	Representative Product
TE Connectivity	MULTI-BEAM X High-Speed I/O Connector
Amphenol	Opti-Speed Active Optical Cable Assembly
Molex	Peregrine 112Gbps Backplane System
3M	Fiber Optic LX.5 Connector for 400G Ethernet

7. Selection Recommendations

Key considerations:

Application Requirements: Signal type (analog/digital), frequency range, power needs
Environmental Factors: Vibration resistance, corrosion protection (IP67-rated for outdoor use)
Standards Compliance: IEEE 802.3bs (400G Ethernet), RoHS, REACH
Total Cost of Ownership: Evaluate connector durability against replacement frequency

8. Industry Trends

Emerging developments include:

Transition to 1.6Tbps+ optical engines with silicon photonics integration
Adoption of liquid cooling compatible connectors for high-density server racks
AI-driven predictive maintenance systems using embedded connector sensors
Miniaturization (e.g., SFP-DD to OSFP-XD size reduction) for 800G+ modules
Increased use of composite materials to reduce weight in aerospace applications