Card Edge Connectors - Edgeboard Connectors

Image Part Number Description / PDF Quantity Rfq
FMC13DRYH

FMC13DRYH

Sullins Connector Solutions

CONN EDGE DUAL FMALE 26POS 0.100

0

MEC8-150-02-SM-DV-A-K-TR

MEC8-150-02-SM-DV-A-K-TR

Samtec, Inc.

CONN EDGE DUAL FMALE 100P 0.031

0

ACC50DREH-S13

ACC50DREH-S13

Sullins Connector Solutions

CONN EDGE DUAL FMALE 100POS .100

0

ACB40DHHD

ACB40DHHD

Sullins Connector Solutions

CONN EDGE DUAL FMALE 80POS 0.050

9

EBC17MMDN

EBC17MMDN

Sullins Connector Solutions

CONN CARDEDGE MALE 34POS 0.100

0

ECC05MMWN

ECC05MMWN

Sullins Connector Solutions

CONN CARDEDGE MALE 10POS 0.100

0

396-056-520-201

396-056-520-201

EDAC Inc.

CONN EDGE DUAL FMALE 56POS 0.125

0

ECC24MMRN

ECC24MMRN

Sullins Connector Solutions

CONN CARDEDGE MALE 48POS 0.100

0

EBM06DRXH

EBM06DRXH

Sullins Connector Solutions

CONN EDGE DUAL FMALE 12POS 0.156

0

ECM12MMVN

ECM12MMVN

Sullins Connector Solutions

CONN CARDEDGE MALE 24POS 0.156

0

SPD08-100-RB-TR

SPD08-100-RB-TR

3M

CONN EDGE DUAL FMALE 100POS .031

0

EBC25MMMD

EBC25MMMD

Sullins Connector Solutions

CONN CARDEDGE MALE 50POS 0.100

31

EBM43DRSN

EBM43DRSN

Sullins Connector Solutions

CONN EDGE DUAL FMALE 86POS 0.156

0

EYM15MMSN

EYM15MMSN

Sullins Connector Solutions

CONN CARDEDGE MALE 30POS 0.156

0

EBC04MMDD

EBC04MMDD

Sullins Connector Solutions

CONN CARDEDGE MALE 8POS 0.100

0

EBC36DRXH

EBC36DRXH

Sullins Connector Solutions

CONN EDGE DUAL FMALE 72POS 0.100

0

EBC25DCAS-S189

EBC25DCAS-S189

Sullins Connector Solutions

CONN EDGE DUAL FMALE 50POS 0.100

0

EBM28MMMN

EBM28MMMN

Sullins Connector Solutions

CONN CARDEDGE MALE 56POS 0.156

0

HSEC8-140-01-S-DV-A-K-TR

HSEC8-140-01-S-DV-A-K-TR

Samtec, Inc.

CONN EDGE DUAL FMALE 80POS 0.031

139

EBC05MMAD

EBC05MMAD

Sullins Connector Solutions

CONN CARDEDGE MALE 10POS 0.100

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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