Card Edge Connectors - Edgeboard Connectors

Image Part Number Description / PDF Quantity Rfq
ECC36MMSD

ECC36MMSD

Sullins Connector Solutions

CONN CARDEDGE MALE 72POS 0.100

0

MEC8-130-02-L-DV

MEC8-130-02-L-DV

Samtec, Inc.

CONN EDGE DUAL FMALE 60POS 0.031

0

EBC25MMRN

EBC25MMRN

Sullins Connector Solutions

CONN CARDEDGE MALE 50POS 0.100

0

HSEC8-160-01-L-DV-A-BL

HSEC8-160-01-L-DV-A-BL

Samtec, Inc.

CONN EDGE DUAL FMALE 120P 0.031

1571

ME1008410101011

ME1008410101011

Storage & Server IO (Amphenol ICC)

MINI COOL EDGE 0.6MM 84PIN VERTI

4570

HSEC8-180-01-S-DV-A

HSEC8-180-01-S-DV-A

Samtec, Inc.

CONN EDGE DUAL FMALE 160P 0.031

0

EBM18DSEH

EBM18DSEH

Sullins Connector Solutions

CONN EDGE DUAL FMALE 36POS 0.156

12

345-060-520-204

345-060-520-204

EDAC Inc.

CONN EDGE DUAL FMALE 60POS 0.100

0

ECC17MMNN

ECC17MMNN

Sullins Connector Solutions

CONN CARDEDGE MALE 34POS 0.100

0

ECC22MMMD

ECC22MMMD

Sullins Connector Solutions

CONN CARDEDGE MALE 44POS 0.100

0

RBB06DHRN

RBB06DHRN

Sullins Connector Solutions

CONN EDGE DUAL FMALE 12POS 0.050

21

395-056-542-202

395-056-542-202

EDAC Inc.

CONN EDGE DUAL FMALE 56POS 0.100

0

EBC08MMWD

EBC08MMWD

Sullins Connector Solutions

CONN CARDEDGE MALE 16POS 0.100

0

395-012-527-202

395-012-527-202

EDAC Inc.

CONN EDGE DUAL FMALE 12POS 0.100

0

745-050-520-206

745-050-520-206

EDAC Inc.

CONN EDGE DUAL FMALE 50POS 0.100

0

2338718-1

2338718-1

TE Connectivity AMP Connectors

RECEPTACLE ASSEMBLY 4C HI POWER

1098

EBM10MMRD

EBM10MMRD

Sullins Connector Solutions

CONN CARDEDGE MALE 20POS 0.156

0

EBC18MMWN

EBC18MMWN

Sullins Connector Solutions

CONN CARDEDGE MALE 36POS 0.100

0

EBM28DREH

EBM28DREH

Sullins Connector Solutions

CONN EDGE DUAL FMALE 56POS 0.156

159

ECC04MMNN

ECC04MMNN

Sullins Connector Solutions

CONN CARDEDGE MALE 8POS 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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