Structured Manufacturing Data (2026)

Power Connectors

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Power Connectors used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Power Connectors is characterized by the integration of Contact Pins and Housing. In industrial production environments, manufacturers listed on CNFX commonly emphasize Copper alloy contacts construction to support stable, high-cycle operation across diverse manufacturing scenarios.

Electrical connectors designed specifically to deliver power from the power supply unit to various components on a motherboard or backplane.

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Product Specifications

Technical details and manufacturing context for Power Connectors

Definition
Power connectors are critical components on motherboards and backplanes that provide the electrical interface for distributing power from the power supply unit to the board and its attached components. They ensure reliable power delivery to processors, memory modules, expansion cards, and other subsystems while maintaining proper voltage levels and current capacity.
Working Principle
Power connectors establish electrical contact between the power supply cables and the motherboard/backplane through mating pin/socket arrangements. They typically use multiple pins to distribute different voltage rails (e.g., +12V, +5V, +3.3V, ground) and are designed with specific keying and locking mechanisms to prevent incorrect insertion and ensure secure connections.
Common Materials
Copper alloy contacts, High-temperature plastic housing, Gold or tin plating
Technical Parameters
  • Number of contact pins in the connector (e.g., 24-pin ATX, 8-pin EPS) (pins) Per Request
Components / BOM
  • Contact Pins Part
    Provide electrical conduction between power supply cables and motherboard circuits
    Material: Copper alloy with gold/tin plating
  • Housing Part
    Insulate and protect contacts, provide mechanical support and keying features
    Material: High-temperature plastic (e.g., PBT, LCP)
  • Locking Mechanism
    Secure connector mating and prevent accidental disconnection
    Material: Plastic or metal

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Power Connectors.

Power Supply Connector motherboard power connector pins backplane power delivery connectors high-temperature plastic housing connectors gold plated power connector contacts computer PSU to motherboard connectors

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Motherboard/Backplane
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Not applicable (electrical connector)
other spec: Current rating: 5-30A per contact, Voltage rating: 50-600V AC/DC, Contact resistance: <10mΩ, Insulation resistance: >1000MΩ
temperature: -40°C to +105°C (operating), up to +125°C (peak)
Media Compatibility
✓ Copper conductors (solid/stranded) ✓ PCB/backplane mounting applications ✓ Standard industrial atmospheres (non-corrosive)
Unsuitable: High-vibration environments without locking mechanisms
Sizing Data Required
  • Current requirement per circuit (Amps)
  • Number of power circuits/pins needed
  • Connector pitch/spacing requirements (mm)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Contact arcing and overheating
Cause: Loose connections, worn contacts, or contamination (dust, moisture) leading to increased electrical resistance and localized heating
Insulation breakdown and short circuit
Cause: Thermal cycling, mechanical stress, or chemical exposure degrading insulation materials, allowing unintended current paths
Maintenance Indicators
  • Visible discoloration, melting, or charring around connector housing indicating overheating
  • Audible buzzing, crackling, or intermittent power loss suggesting arcing or poor contact
Engineering Tips
  • Implement torque-controlled installation and periodic retorquing schedules to maintain proper contact pressure and prevent loosening from thermal cycling
  • Use protective boots, seals, or enclosures appropriate for the environment (e.g., IP-rated for moisture/dust) and apply dielectric grease to inhibit corrosion on contacts

Compliance & Manufacturing Standards

Reference Standards
IEC 60320 (International Electrotechnical Commission) UL 498 (Underwriters Laboratories) DIN 49440 (German Institute for Standardization)
Manufacturing Precision
  • Pin Diameter: +/-0.05mm
  • Contact Resistance: <10mΩ
Quality Inspection
  • Dielectric Withstand Test (Hi-Pot)
  • Mechanical Durability Test (Insertion/Withdrawal Cycles)

Factories Producing Power Connectors

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What are the key advantages of gold plating versus tin plating on power connector contacts?

Gold plating offers superior corrosion resistance and maintains lower contact resistance over time, making it ideal for high-reliability applications. Tin plating provides good conductivity at lower cost but may oxidize more readily in harsh environments.

How do power connectors ensure secure connections in vibration-prone industrial environments?

Our power connectors feature robust locking mechanisms and high-temperature plastic housings that maintain dimensional stability, preventing disconnection and maintaining consistent power delivery even under mechanical stress.

What specifications should I consider when selecting power connectors for high-current applications?

Key specifications include current rating per pin, contact resistance, insulation resistance, dielectric strength, operating temperature range, and mating cycle durability. Copper alloy contacts with proper plating are essential for minimizing power loss.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Computer, Electronic and Optical Product Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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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