Card Edge Connectors - Edgeboard Connectors

Image Part Number Description / PDF Quantity Rfq
EBM10MMWD

EBM10MMWD

Sullins Connector Solutions

CONN CARDEDGE MALE 20POS 0.156

0

EBC22MMAN

EBC22MMAN

Sullins Connector Solutions

CONN CARDEDGE MALE 44POS 0.100

0

0877159102

0877159102

Woodhead - Molex

CONN EDGE DUAL FMALE 64POS 0.039

0

EBC25DTAS

EBC25DTAS

Sullins Connector Solutions

CONN EDGE DUAL FMALE 50POS 0.100

0

531353-3

531353-3

TE Connectivity AMP Connectors

CONN EDGE DUAL FEMALE 8POS 0.312

0

341-030-522-204

341-030-522-204

EDAC Inc.

CONN EDGE DUAL FMALE 30POS 0.100

0

EBC36MMSD

EBC36MMSD

Sullins Connector Solutions

CONN CARDEDGE MALE 72POS 0.100

0

395-012-541-801

395-012-541-801

EDAC Inc.

CONN EDGE DUAL FMALE 12POS 0.100

0

EBC36MMSN

EBC36MMSN

Sullins Connector Solutions

CONN CARDEDGE MALE 72POS 0.100

0

ACB35DHRD

ACB35DHRD

Sullins Connector Solutions

CONN EDGE DUAL FMALE 70POS 0.050

0

965624-1

965624-1

TE Connectivity AMP Connectors

DUAL LEAF GEH 18P

0

3464-0002

3464-0002

3M

CONN EDGE DUAL FMALE 40POS 0.100

370

ECC05DJWN

ECC05DJWN

Sullins Connector Solutions

CONN EDGE DUAL FMALE 10POS 0.100

0

HSEC8-130-01-L-DV-A

HSEC8-130-01-L-DV-A

Samtec, Inc.

CONN EDGE DUAL FMALE 60POS 0.031

1658

ACC12DRXH

ACC12DRXH

Sullins Connector Solutions

CONN EDGE DUAL FMALE 24POS 0.100

0

CEE016400140111

CEE016400140111

Storage & Server IO (Amphenol ICC)

PCIE COOL EDGE 1.0MM, 164 SIGNAL

1030

EBM12MMBN

EBM12MMBN

Sullins Connector Solutions

CONN CARDEDGE MALE 24POS 0.156

0

CEE023000140301

CEE023000140301

Storage & Server IO (Amphenol ICC)

PCIE COOL EDGE 1.0MM,STORAGE AND

0

HSEC8-113-01-L-DV-A-K-TR

HSEC8-113-01-L-DV-A-K-TR

Samtec, Inc.

CONN EDGE DUAL FMALE 26POS 0.031

797

EBM06MMAN

EBM06MMAN

Sullins Connector Solutions

CONN CARDEDGE MALE 12POS 0.156

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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