Card Edge Connectors - Edgeboard Connectors

Image Part Number Description / PDF Quantity Rfq
3-2337939-7

3-2337939-7

TE Connectivity AMP Connectors

PCIE GEN4 CON,SMT,98POS,GF,MYLAR

420

1766308-1

1766308-1

TE Connectivity AMP Connectors

CONN CROWN EDGE FMALE 44POS GOLD

128

2214913-7

2214913-7

TE Connectivity AMP Connectors

MBCE 2X2 P + 2X6 S VERTICAL EON

979

1-5147490-0

1-5147490-0

TE Connectivity AMP Connectors

CONN EDGE DUAL FMALE 20POS 0.100

1163

1761426-1

1761426-1

TE Connectivity AMP Connectors

CONN EDGE DUAL FMALE 36POS 0.050

113

5-2337939-2

5-2337939-2

TE Connectivity AMP Connectors

PCIE GEN4 CON,SMT,64POS,30U",MYL

189

6489930-2

6489930-2

TE Connectivity AMP Connectors

CONN EDGE DUAL FMALE 62POS 0.100

125

5145168-2

5145168-2

TE Connectivity AMP Connectors

CONN PCI CARDEDGE FEMALE 184POS

0

6364666-2

6364666-2

TE Connectivity AMP Connectors

CONN EDGE DUAL FMALE 25POS 0.100

307

2199230-3

2199230-3

TE Connectivity AMP Connectors

CONN EDGE DUAL FMALE 67POS 0.020

14566

4-2337939-7

4-2337939-7

TE Connectivity AMP Connectors

PCIE GEN4 CON,SMT,98POS,15U",MYL

508

1871058-3

1871058-3

TE Connectivity AMP Connectors

CONN PCI EXP FEMALE 98POS 0.039

0

2041262-1

2041262-1

TE Connectivity AMP Connectors

CONN PCI EXP MINI FEMALE 52POS

19879

7-5530843-5

7-5530843-5

TE Connectivity AMP Connectors

CONN CARDEDGE FEMALE 12POS 0.100

5775

6651331-1

6651331-1

TE Connectivity AMP Connectors

CONN EDGE DUAL FEMALE 4POS 0.508

0

5530843-7

5530843-7

TE Connectivity AMP Connectors

CONN CARDEDGE FEMALE 60POS 0.100

229

1651826-1

1651826-1

TE Connectivity AMP Connectors

CONN CROWN EDGE FMALE 30POS GOLD

312

2327679-2

2327679-2

TE Connectivity AMP Connectors

RECEPTACLE ASSY 56 POS VERT GEN

1349

1-5145166-2

1-5145166-2

TE Connectivity AMP Connectors

CONN PCI CARDEDGE FEMALE 184POS

450

5650090-2

5650090-2

TE Connectivity AMP Connectors

CONN EDGE DUAL FMALE 90POS 0.050

2728

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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