Pluggable Connectors

Part Number	Description / PDF	Quantity
0747200510 Woodhead - Molex	CONN SFP PLUG SLD CUP STR	2642
2031431350 Woodhead - Molex	CONN QSFD DD CAGE W/HSINK R/A	2924
0757595001 Woodhead - Molex	CONN SFP RCPT W/CAGE 2X2 80P R/A	8
0678005025 Woodhead - Molex	CONN SATA HEADER 7POS SLD SMD	2056
0877131001 Woodhead - Molex	CONN SATA RCPT 22POS SLD SMD	4683
0747540220 Woodhead - Molex	CONN SFP+ CAGE 1X2 PRESS-FIT R/A	0
0747280415 Woodhead - Molex	CONN SFP CAGE 1X4 PRESS-FIT R/A	243
0757840140 Woodhead - Molex	CONN MINI SAS RCPT 36POS SLD SMD	769
0768661013 Woodhead - Molex	CONN MIN 2.0 SAS RCP 1X4 144P RA	144
0784920001 Woodhead - Molex	CONN MICRO SATA RCPT 16P SLD SMD	918
0755860010 Woodhead - Molex	CONN MINI SAS RCP 38P SLD RA SMD	0
0757840126 Woodhead - Molex	CONN MINI SAS RCPT 36POS SLD SMD	960
0757830323 Woodhead - Molex	CONN MINI SAS RCP 68P SLD RA SMD	0
0760475003 Woodhead - Molex	CONN SFP+ RCP W/CAGE 2X5 200P RA	32
0757830020 Woodhead - Molex	CONN MINI SAS RCP 26P SLD RA SMD	0
0757830348 Woodhead - Molex	CONN MINI SAS RCP 68P SLD RA SMD	0
0878390039 Woodhead - Molex	CONN SAS RCPT 29POS SLD PCB	0
0757830331 Woodhead - Molex	CONN MINI SAS RCP 68P SLD RA SMD	0
0757830228 Woodhead - Molex	CONN MINI SAS RCP 50P SLD RA SMD	0
0757840328 Woodhead - Molex	CONN MINI SAS RCPT 68POS SLD SMD	0

Pluggable Connectors

1. Overview

Pluggable connectors are modular electronic interfaces enabling rapid connection/disconnection of circuits in high-speed data transmission systems. As critical components in modern communication infrastructure, they support hot-swapping capabilities while maintaining signal integrity. These connectors serve as standardized interfaces between devices, cables, and PCBs, playing essential roles in telecommunications, data centers, and industrial automation.

2. Major Types and Functional Classification

Type	Functional Characteristics	Application Examples
Fiber Optic Connectors	Supports 10Gbps-400Gbps transmission, LC/MPO interfaces, low insertion loss	Data center backbone networks
Copper Cage Connectors	Shielded modular design, supports 1Gbps-100Gbps, thermal management features	Switch/router panel interfaces
High-Speed Backplane	Differential pair architecture, impedance-controlled, multi-gigabit per lane	Telecom equipment chassis
M12/X-coded Connectors	Industrial Ethernet, IP67 rated, vibration-resistant	Factory automation systems

3. Structure and Components

Typical pluggable connectors consist of: - Housing: Latch-equipped polymer casing (UL94 V-0 rated) - Contacts: Gold-plated phosphor bronze with 0.1-0.2N contact force - Insulation: High-temperature resistant PBT/GF materials - Termination: Solder tails or press-fit pins (10-40 positions) - Shielding: 360 EMI protection with drain wire connection - Keying: Mechanical polarization to prevent mismatch insertion

4. Key Technical Specifications

Parameter	Typical Value	Importance
Contact Resistance	5-20 m	Directly affects power loss
Insulation Resistance	>10^9	Safety and signal isolation
VSWR	<1.5:1 @50GHz	Microwave signal integrity
Operating Temp	-55 C to +125 C	Environmental reliability
Mating Cycles	500-1000 cycles	Lifetime durability

5. Application Fields

Telecommunications: 5G base stations (eCPRI interfaces), DWDM systems
Data Centers: Top-of-Rack switches using QSFP28/OSFP modules
Industrial: PROFINET-enabled machinery with M12 connectors
Transportation: Automotive Ethernet in autonomous vehicles (100BASE-T1)
Medical: MRI machines requiring sterile electrical interfaces

6. Leading Manufacturers and Products

Manufacturer	Key Products	Specialization
Amphenol ICC	OptiMux fiber arrays	High-density optical
TE Connectivity	MATRIXall backplane	Harsh environment
Molex	OSFP800 Series	800Gbps solutions
Samtec	FireFly optical engines	Mid-board optical

7. Selection Guidelines

Key considerations: - Signal bandwidth requirements (Nyquist frequency calculation) - Environmental factors (temperature/humidity/chemical exposure) - Compliance with industry standards (IEEE 802.3bs, IEC 61076) - Termination method compatibility (SMT vs through-hole) - Cost vs performance trade-off (e.g., gold vs silver contacts) - Future-proofing (support for next-gen protocols)

8. Industry Trends

Current development directions include: - 1.6Tbps+ optical interfaces using 100G per lane electrical design - EMI reduction through nano-coating and 3D shielding structures - Miniaturization driven by 5G small cells and IoT devices - Integrated magnetics in RJ45 connectors for PoE++ applications - Sustainable materials meeting REACH/RoHS regulations - Smart connectors with embedded diagnostics (IEEE 802.3ap)