Pluggable Connectors

Part Number	Description / PDF	Quantity
2033691253 Woodhead - Molex	QSFP-DD CAGE ASSEMBLY, 1X3, OPEN	1142
0755860011 Woodhead - Molex	CONN MINI SAS RCP 38P SLD RA SMD	898
1717222002 Woodhead - Molex	CONN ZQSFP+ RCP CAGE 2X2 152P RA	127
0678005005 Woodhead - Molex	CONN SATA HEADER 7POS SLD SMD	0
2033711347 Woodhead - Molex	QSFP-DD CAGE ASSEMBLY, 1X5, SAN	1081
0678008025 Woodhead - Molex	CONN SATA HEADER 7POS SLD PCB	9043
0747500021 Woodhead - Molex	CONN QSFP+ CAGE PRESS-FIT R/A	410
0760935002 Woodhead - Molex	CONN SFP+ RCP W/CAGE 2X5 200P RA	0
0768710008 Woodhead - Molex	CONN QSFP CAGE 2X1 76POS R/A	167
1703820002 Woodhead - Molex	CONN ZSFP+ RCPT 20POS SLD RA SMD	17166
0473065005 Woodhead - Molex	CONN SATA HEADER 7POS SLD SMD	883
0757840125 Woodhead - Molex	CONN MINI SAS RCPT 36POS SLD SMD	581
2031431254 Woodhead - Molex	QSFP-DD 1X1 SF ASSY, OT, 0RL, W/	537
0470182002 Woodhead - Molex	CONN SATA RCPT 22POS SLD R/A SMD	798
0763525001 Woodhead - Molex	CONN SFP+ RCP W/CAGE 2X8 320P RA	0
0744410017 Woodhead - Molex	CONN XFP RCPT 30POS SLD R/A SMD	1291
0744410003 Woodhead - Molex	CONN Z-AXIS RCPT 70P SLD RA SMD	0
0787150004 Woodhead - Molex	CONN RCPT 29POS SLD SMD	1149
0757145002 Woodhead - Molex	CONN SFP RCPT W/CAGE 2X2 80P R/A	0
0757830132 Woodhead - Molex	CONN MINI SAS RCP 36P SLD RA SMD	2252

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)