Pluggable Connectors

Part Number	Description / PDF	Quantity
0747370002 Woodhead - Molex	CONN SFP CAGE PRESS-FIT R/A	525
0739270402 Woodhead - Molex	CONN SFP CAGE 1X4 SLD R/A	0
2031521347 Woodhead - Molex	QSFP-DD CAGE ASSEMBLY, 1X2, SAN	1134
0678008005 Woodhead - Molex	CONN SATA HEADER 7POS SLD PCB	0
0760455001 Woodhead - Molex	CONN SFP+ RCPT W/CAGE 2X2 80P RA	212936
2033701347 Woodhead - Molex	QSFP-DD CAGE ASSEMBLY, 1X4, SAN	658
0760445002 Woodhead - Molex	CONN SFP+ RCPT W/CAGE 2X1 40P RA	154
0679260001 Woodhead - Molex	CONN SATA RCPT 15POS IDC STR	3074
0754625001 Woodhead - Molex	CONN SFP RCPT W/CAGE 2X1 40P R/A	650
0747540101 Woodhead - Molex	CONN SFP+ CAGE PRESS-FIT R/A	5366
0754505003 Woodhead - Molex	CONN SFP RCPT W/CAGE 2X4 160P RA	10
1715651002 Woodhead - Molex	CONN ZQSFP+ RCPT CAGE 2X1 76P RA	222
0768671011 Woodhead - Molex	CONN MINI 2.0 SAS RCPT 36POS R/A	0
1707290005 Woodhead - Molex	CONN RCPT 36POS PRESS-FIT PCB	539
2040586102 Woodhead - Molex	QSFP-DD ASSEMBLY, STACKED 2X1, 4	449
0760915001 Woodhead - Molex	CONN SFP+ RCPT W/CAGE 2X2 80P RA	59
1719833042 Woodhead - Molex	CONN NANO-PITCH I/O RCPT 42P SMD	656711880
0747360212 Woodhead - Molex	CONN XFP CAGE W/HSINK PRESS R/A	0
0551000680 Woodhead - Molex	CONN SERIAL I/O PLG 6POS SLD STR	296
0455600160 Woodhead - Molex	CONN CRADLE 16POS 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)