Card Edge Connectors - Edgeboard Connectors

Image Part Number Description / PDF Quantity Rfq
ECC30MMJN

ECC30MMJN

Sullins Connector Solutions

CONN CARDEDGE MALE 60POS 0.100

0

ECM12MMRN

ECM12MMRN

Sullins Connector Solutions

CONN CARDEDGE MALE 24POS 0.156

0

ECC05MMSN

ECC05MMSN

Sullins Connector Solutions

CONN CARDEDGE MALE 10POS 0.100

0

305-024-500-204

305-024-500-204

EDAC Inc.

CONN EDGE DUAL FMALE 24POS 0.156

0

EYC20MMRN

EYC20MMRN

Sullins Connector Solutions

CONN CARDEDGE MALE 40POS 0.100

0

341-030-500-202

341-030-500-202

EDAC Inc.

CONN EDGE DUAL FMALE 30POS 0.100

0

ESM24DREH

ESM24DREH

Sullins Connector Solutions

CONN EDGE DUAL FMALE 48POS 0.156

0

EBC10DCMH

EBC10DCMH

Sullins Connector Solutions

CONN EDGE DUAL FMALE 20POS 0.100

8

EBC15MMVD

EBC15MMVD

Sullins Connector Solutions

CONN CARDEDGE MALE 30POS 0.100

0

MEC6-110-02-L-DV-A

MEC6-110-02-L-DV-A

Samtec, Inc.

CONN EDGE DUAL FMALE 20POS 0.025

64

0877159206

0877159206

Woodhead - Molex

CONN PCI EXP FEMALE 98POS 0.039

848

PCIE-164-02-F-D-RA

PCIE-164-02-F-D-RA

Samtec, Inc.

CONN PCI EXP FMALE 164POS 0.039

123

10018784-10213TLF

10018784-10213TLF

Storage & Server IO (Amphenol ICC)

CONN PCI EXP FEMALE 164POS 0.039

0

ECC60DJBN

ECC60DJBN

Sullins Connector Solutions

CONN EDGE DUAL FMALE 120POS .100

0

EBC12MMVN

EBC12MMVN

Sullins Connector Solutions

CONN CARDEDGE MALE 24POS 0.100

0

EBC06MMVD

EBC06MMVD

Sullins Connector Solutions

CONN CARDEDGE MALE 12POS 0.100

0

ECC10DJWN

ECC10DJWN

Sullins Connector Solutions

CONN EDGE DUAL FMALE 20POS 0.100

0

EBM22MMMD

EBM22MMMD

Sullins Connector Solutions

CONN CARDEDGE MALE 44POS 0.156

0

SPD08-080-RB-TR

SPD08-080-RB-TR

3M

CONN EDGE DUAL FMALE 80POS 0.031

975

2340321-1

2340321-1

TE Connectivity AMP Connectors

ASSY STRADDLE MOUNT 168P 062 SLI

1667

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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