Card Edge Connectors - Edgeboard Connectors

Image Part Number Description / PDF Quantity Rfq
0711095003

0711095003

Woodhead - Molex

CONN EDGE DUAL FMALE 220POS .030

0

0009072032

0009072032

Woodhead - Molex

CONN EDGE SINGLE FEMALE 3POS

0

0482009233

0482009233

Woodhead - Molex

CONN PCI CARDEDGE FEMALE 184POS

0

2051081001

2051081001

Woodhead - Molex

OFFSET GUIDE PIN KIT 093 SPEEDED

0

0877159303

0877159303

Woodhead - Molex

CONN PCI EXP FEMALE 164POS 0.039

0

0711095001

0711095001

Woodhead - Molex

CONN EDGE DUAL FMALE 220POS .030

0

1512142174

1512142174

Woodhead - Molex

CONNECTOR ASSEMBLY

0

0482009230

0482009230

Woodhead - Molex

CONN PCI CARDEDGE FEMALE 184POS

0

0877159301

0877159301

Woodhead - Molex

CONN PCI EXP FEMALE 164POS 0.039

0

0482009231

0482009231

Woodhead - Molex

CONN PCI CARDEDGE FEMALE 184POS

0

1733009998

1733009998

Woodhead - Molex

SPEEDEDGE 60CKT RECP

0

0482009243

0482009243

Woodhead - Molex

CONN PCI CARDEDGE FEMALE 184POS

0

1717742124

1717742124

Woodhead - Molex

CONN FEMALE 0.031 GOLD

0

0482002300

0482002300

Woodhead - Molex

CONN EDGE DUAL FMALE 46POS 0.050

0

0877159209

0877159209

Woodhead - Molex

CONN PCI EXP FEMALE 98POS 0.039

0

1512143124

1512143124

Woodhead - Molex

EDGELINE25 ASSY 85OHM SMT 124CKT

0

0459120037

0459120037

Woodhead - Molex

CONN EDGE DUAL FMALE 26POS 0.508

0

0459840011

0459840011

Woodhead - Molex

CONN EDGE DUAL FMALE 28POS GOLD

0

0877159201

0877159201

Woodhead - Molex

CONN PCI EXP FEMALE 98POS 0.039

0

0482009221

0482009221

Woodhead - Molex

CONN PCI CARDEDGE FEMALE 184POS

0

Card Edge Connectors - Edgeboard Connectors

1. Overview

Card Edge Connectors, also known as Edgeboard Connectors, are electrical connectors designed to connect printed circuit boards (PCBs) directly to other boards or systems via their edges. These connectors eliminate the need for separate cables or wiring harnesses by utilizing the PCB's edge as both the mechanical support and electrical interface. They play a critical role in modern electronics by enabling compact designs, reliable signal transmission, and modular system architectures.

2. Main Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
PCIe Edge ConnectorsHigh-speed serial communication with low latencyGraphics cards, SSDs, network adapters
DIMM ConnectorsParallel data transfer for memory modulesDesktop/server RAM modules
SATA Edge ConnectorsSerial data transfer with hot-swapping capabilityHDDs, SSDs, optical drives
USB Type-C Edge ConnectorsBidirectional 24-pin configuration with power deliveryLaptops, mobile devices, docking stations

3. Structure and Components

Typical card edge connectors consist of: - Contact Points: Phosphor bronze or beryllium copper with gold-plated surfaces (10-50 m thickness) for low resistance - Insulation Body: High-temperature resistant LCP or nylon materials (UL94 V-0 rated) - Retention Mechanism: Integrated latches or screws for vibration resistance - PCB Interface: Precision-machined slots with alignment guides ( 0.05mm tolerance) - Shielding Layer: EMI-suppressing metal shells for high-frequency applications

4. Key Technical Specifications

ParameterTypical ValueImportance
Contact Resistance5-20m Ensures minimal signal loss
Current Rating1-5A per contactDetermines power delivery capacity
Dielectric Withstanding Voltage500-1000V ACGuarantees electrical safety
Insertion Force20-60NAffects user experience and durability
Operating Temperature-55 C to +125 CDefines environmental adaptability
Mating Cycles500-10,000 cyclesMeasures mechanical longevity

5. Application Fields

  • Computer Systems: Motherboards, expansion cards, memory modules
  • Telecommunications: 5G base stations, network switches
  • Industrial Automation: PLCs, control panels
  • Medical Equipment: MRI scanners, diagnostic devices
  • Consumer Electronics: Smartphones, gaming consoles

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Features
Amphenol ICCSmartSpring PCIe Gen57GHz bandwidth, 0.3mm pitch
TE ConnectivityMEZZOP Edge ConnectorDouble-sided contact design
MolexSL Series DIMM2.0N contact force reduction
SamtecEdge Rate HD0.8mm pitch, 25Gbps per channel

7. Selection Guidelines

Key considerations include: - Signal integrity requirements (frequency vs. crosstalk) - Mechanical constraints (board thickness, spacing) - Environmental conditions (temperature, vibration) - Compliance standards (IPC, RoHS) - Cost-performance balance (gold thickness vs. mating cycles) - Example: For a 10Gbps Ethernet switch, select connectors with controlled impedance (100 10%) and low insertion loss (<0.5dB at 12.5GHz)

8. Industry Trends

Current development directions: - High-density designs (sub-0.5mm pitch) - Enhanced thermal management for 5G applications - Integration with optical interconnects - Surface-mount technology (SMT) adoption - Increased use of conductive polymers for contact materials - Development of self-aligning connectors for automated assembly

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