Card Edge Connectors - Edgeboard Connectors

Image Part Number Description / PDF Quantity Rfq
333-030-524-201

333-030-524-201

EDAC Inc.

CONN EDGE DUAL FMALE 30POS 0.156

0

FMC22DREH

FMC22DREH

Sullins Connector Solutions

CONN EDGE DUAL FMALE 44POS 0.100

0

ECM06MMDD

ECM06MMDD

Sullins Connector Solutions

CONN CARDEDGE MALE 12POS 0.156

0

ACC18DREH

ACC18DREH

Sullins Connector Solutions

CONN EDGE DUAL FMALE 36POS 0.100

0

6489934-1

6489934-1

TE Connectivity AMP Connectors

CONN PCI CARDEDGE FEMALE 184POS

0

ECC06MMAD

ECC06MMAD

Sullins Connector Solutions

CONN CARDEDGE MALE 12POS 0.100

0

305-056-520-202

305-056-520-202

EDAC Inc.

CONN EDGE DUAL FMALE 56POS 0.156

0

ECC06MMDD

ECC06MMDD

Sullins Connector Solutions

CONN CARDEDGE MALE 12POS 0.100

0

EBM15MMAN

EBM15MMAN

Sullins Connector Solutions

CONN CARDEDGE MALE 30POS 0.156

0

EBC12MMMD

EBC12MMMD

Sullins Connector Solutions

CONN CARDEDGE MALE 24POS 0.100

0

EBC12MMNN

EBC12MMNN

Sullins Connector Solutions

CONN CARDEDGE MALE 24POS 0.100

0

ME1014013401201

ME1014013401201

Storage & Server IO (Amphenol ICC)

CONN EDGE DUAL FMALE 140P 0.024

150

EBC10MMSN

EBC10MMSN

Sullins Connector Solutions

CONN CARDEDGE MALE 20POS 0.100

0

ECC50MMWN

ECC50MMWN

Sullins Connector Solutions

CONN CARDEDGE MALE 100POS 0.100

0

ECC19MMAD

ECC19MMAD

Sullins Connector Solutions

CONN CARDEDGE MALE 38POS 0.100

0

10018784-10012TLF

10018784-10012TLF

Storage & Server IO (Amphenol ICC)

CONN PCI EXP FEMALE 98POS 0.039

0

1-5145165-2

1-5145165-2

TE Connectivity AMP Connectors

CONN PCI CARDEDGE FEMALE 184POS

160

EBM28MMRN

EBM28MMRN

Sullins Connector Solutions

CONN CARDEDGE MALE 56POS 0.156

0

EBC06MMSD

EBC06MMSD

Sullins Connector Solutions

CONN CARDEDGE MALE 12POS 0.100

0

RBB40DHHN

RBB40DHHN

Sullins Connector Solutions

CONN EDGE DUAL FMALE 80POS 0.050

290

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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