INDUSTRY COMPONENT

Edge Connector

Edge connector is a printed circuit board (PCB) connector that mates with the edge of another PCB, commonly used in high-speed memory modules for reliable electrical connections.

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Component Specifications

Definition
An edge connector is a type of electrical connector designed to interface with the edge of a printed circuit board (PCB), featuring a series of contacts that align with conductive pads or traces on the board's edge. In high-speed memory modules, it enables secure mechanical attachment and low-resistance electrical pathways for data transfer, power distribution, and signal integrity, often incorporating gold-plated contacts and precision alignment features to support high-frequency operations.
Working Principle
The edge connector operates by establishing electrical contact between its internal spring-loaded or friction-fit contacts and the conductive pads on the edge of a PCB. When the memory module is inserted, the contacts exert pressure against the pads, ensuring a stable connection. This design minimizes signal loss and electromagnetic interference (EMI), crucial for high-speed data transmission in memory applications, by maintaining consistent impedance and reducing insertion loss.
Materials
Contacts: Beryllium copper or phosphor bronze with gold plating (typically 0.76-1.27 μm thickness) for corrosion resistance and low contact resistance. Housing: High-temperature thermoplastics such as polybutylene terephthalate (PBT) or liquid crystal polymer (LCP), rated for operating temperatures up to 125°C, with UL94 V-0 flammability rating.
Technical Parameters
ParameterTypical rangeNotes & selection driver
Durability500 to 10,000 mating cycles
Contact Pitch0.5 mm to 2.54 mm
Current RatingUp to 3 A per contact
Voltage RatingUp to 250 V AC/DC
Insertion Force0.5 N to 1.5 N per contact
Contact Resistance< 20 mΩ
Number Of Contacts64 to 288 pins
Insulation Resistance> 1,000 MΩ
Operating Temperature-40°C to +85°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards
ISO 9001, IEC 60512, JEDEC JESD22-B111

Parent Products

This component is used in the following industrial products

High-Speed Memory Module

Printed circuit board with integrated memory chips for temporary data storage in computing devices.

View Product Details

Cache Memory Module

A dedicated memory component within a RAID controller that temporarily stores frequently accessed data to accelerate read/write operations.

View Product Details

Expansion Cards

Circuit boards that add specific functionality to rackmount industrial servers through expansion slots.

View Product Details

Engineering Analysis

Risks & Mitigation
  • Contact wear over mating cycles
  • Misalignment during insertion causing damage
  • Electromagnetic interference (EMI) at high frequencies
  • Thermal expansion mismatches
FMEA Triads
Trigger: Improper insertion force or misalignment
Failure: Bent contacts or broken PCB pads
Mitigation: Use guided insertion mechanisms and design with chamfered edges; implement quality checks during assembly.
Trigger: Environmental contamination (e.g., dust, moisture)
Failure: Increased contact resistance or short circuits
Mitigation: Apply conformal coatings or use sealed connector designs; store in controlled environments.

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
±0.1 mm for contact alignment, ±5% for electrical specifications
Test Method
IEC 60512 for electrical and mechanical testing, including insertion/withdrawal force, contact resistance, and environmental stress screening.

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Edge Connector

Manufacturer profiles associated with Edge Connector.

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PCB Substrate
PCB substrate is the foundational insulating layer that provides mechanical support and electrical connectivity for electronic components in high-speed memory modules.

Frequently Asked Questions

What is the primary function of an edge connector in a high-speed memory module?

The edge connector provides a reliable electrical and mechanical interface between the memory module and the motherboard, enabling data transfer, power supply, and signal integrity for high-speed operations.

How does material selection impact the performance of an edge connector?

Gold-plated contacts reduce oxidation and ensure low contact resistance, while high-temperature plastics like LCP offer durability and thermal stability, critical for maintaining performance in demanding environments.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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DSP (Digital Signal Processor) Edge Connectors
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