Card Edge Connectors - Edgeboard Connectors

Image Part Number Description / PDF Quantity Rfq
ECC05MMVN

ECC05MMVN

Sullins Connector Solutions

CONN CARDEDGE MALE 10POS 0.100

0

EBC22MMBD

EBC22MMBD

Sullins Connector Solutions

CONN CARDEDGE MALE 44POS 0.100

0

306-028-500-102

306-028-500-102

EDAC Inc.

CONN EDGE DUAL FMALE 56POS 0.156

0

EBC18MMVN

EBC18MMVN

Sullins Connector Solutions

CONN CARDEDGE MALE 36POS 0.100

0

10061913-101PLF

10061913-101PLF

Storage & Server IO (Amphenol ICC)

CONN PCI EXP FEMALE 64POS 0.039

784

EBC25MMSN

EBC25MMSN

Sullins Connector Solutions

CONN CARDEDGE MALE 50POS 0.100

0

G630HAA1621EU

G630HAA1621EU

Storage & Server IO (Amphenol ICC)

CONN PCI EXP FEMALE 164POS 0.039

0

EBM36DREH

EBM36DREH

Sullins Connector Solutions

CONN EDGE DUAL FMALE 72POS 0.156

12

357-030-524-202

357-030-524-202

EDAC Inc.

CONN EDGE DUAL FMALE 30POS 0.156

0

SPD08-120-RB-TR

SPD08-120-RB-TR

3M

CONN EDGE DUAL FMALE 120POS .031

35

ECC22MMBN

ECC22MMBN

Sullins Connector Solutions

CONN CARDEDGE MALE 44POS 0.100

0

CEE023000140101

CEE023000140101

Storage & Server IO (Amphenol ICC)

PCIE COOL EDGE 1.0MM,STORAGE AND

0

MEC8-160-02-S-DV-A-K-TR

MEC8-160-02-S-DV-A-K-TR

Samtec, Inc.

CONN EDGE DUAL FMALE 120P 0.031

0

10058831-110LF

10058831-110LF

Storage & Server IO (Amphenol ICC)

CONN MICROTCA FMALE 170POS 0.029

399

5145169-8

5145169-8

TE Connectivity AMP Connectors

CONN PCI CARDEDGE FEMALE 184POS

222

EBC17MMSD

EBC17MMSD

Sullins Connector Solutions

CONN CARDEDGE MALE 34POS 0.100

0

ECM14MMBN

ECM14MMBN

Sullins Connector Solutions

CONN CARDEDGE MALE 28POS 0.156

0

EBM10DRAS

EBM10DRAS

Sullins Connector Solutions

CONN EDGE DUAL FMALE 20POS 0.156

0

395-056-542-801

395-056-542-801

EDAC Inc.

CONN EDGE DUAL FMALE 56POS 0.100

0

ECC15MMBD

ECC15MMBD

Sullins Connector Solutions

CONN CARDEDGE MALE 30POS 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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