INDUSTRY COMPONENT

Electrical contacts

Electrical contacts are conductive components that establish and interrupt electrical circuits in LED arrays/modules, ensuring reliable current flow and signal transmission.

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Component Specifications

Definition
Electrical contacts are precision-engineered conductive elements designed to create, maintain, and break electrical connections within LED arrays or modules. They serve as critical interfaces between power sources, control systems, and individual LEDs, facilitating efficient current distribution, signal integrity, and thermal management. In industrial LED applications, these contacts must maintain low electrical resistance, withstand repeated mechanical cycling, and resist environmental degradation to ensure long-term operational reliability.
Working Principle
Electrical contacts operate on the principle of establishing a low-resistance conductive path between two or more circuit elements. When mated, they allow electrical current to flow through the LED array, enabling illumination. Their design ensures consistent pressure and surface contact to minimize voltage drop and prevent arcing. In switching applications, they separate to interrupt current flow, with materials and geometries optimized to reduce wear and contact resistance over thousands of cycles.
Materials
Common materials include copper alloys (beryllium copper, phosphor bronze) for conductivity and spring properties, often plated with silver, gold, or tin to enhance corrosion resistance and reduce contact resistance. High-temperature applications may use tungsten or molybdenum composites. Insulating housings are typically made from engineering plastics like PBT, PPS, or LCP with UL94 V-0 flammability ratings.
Technical Parameters
ParameterTypical rangeNotes & selection driver
Contact Force0.5-2.0N
Rated Current1-10A
Rated Voltage12-48V DC
Mechanical Life>10,000 cycles
Contact Resistance<20 mΩ
Dielectric Strength500V AC for 1 minute
Insulation Resistance>1000 MΩ
Operating Temperature-40°C to +125°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
DIN 41612

Parent Products

This component is used in the following industrial products

LED array/module

A modular assembly of multiple LED chips arranged in a specific pattern on a substrate, serving as the core light-emitting component in LED lighting systems.

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Touch-Trigger Probe

A precision sensor component used in coordinate measuring machines (CMMs) that detects physical contact with a workpiece to initiate measurement data capture.

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Infrared Detector

A sensor component that detects infrared radiation and converts it into an electrical signal.

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Engineering Analysis

Risks & Mitigation
  • Contact oxidation leading to increased resistance
  • Mechanical fatigue from vibration
  • Thermal expansion mismatch causing connection loss
  • Arc erosion in switching applications
  • Contamination from environmental pollutants
FMEA Triads
Trigger: Oxidation due to humidity exposure
Failure: Increased contact resistance leading to voltage drop and reduced LED brightness
Mitigation: Use corrosion-resistant plating (gold, silver), apply protective conformal coatings, maintain controlled environment during assembly
Trigger: Insufficient contact force
Failure: Intermittent connections causing flickering or complete circuit interruption
Mitigation: Design spring contacts with proper deflection characteristics, implement force testing during quality control, use redundant contact points
Trigger: Thermal cycling stress
Failure: Material fatigue and contact separation due to differential expansion
Mitigation: Select materials with compatible thermal expansion coefficients, design stress-relief features, implement thermal management in LED module design

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
Contact position tolerance ±0.1mm, plating thickness tolerance ±0.5μm
Test Method
Contact resistance measured via 4-wire Kelvin method, dielectric strength tested per IEC 60512, mechanical life tested via automated cycling equipment

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 Electrical contacts

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

HLC Metal Parts Ltd
Dongguan, Guangdong, CN
IATF16949 ISO13485
Also makes: CNC Machined Part, Plastic Injection Molded Part, Finishing Assembly and 4 more
Listed on the company's own website · profile compiled by CNFX from public sources
View profile Send enquiry

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

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Frequently Asked Questions

Why are gold-plated contacts used in LED arrays?

Gold plating provides excellent corrosion resistance, maintains low contact resistance over time, and prevents oxidation that could interrupt electrical continuity in LED circuits.

How do contact materials affect LED performance?

Material choice impacts conductivity, thermal management, and durability. High-conductivity materials reduce voltage drop and heat generation, while robust materials withstand mechanical stress during assembly and operation.

What causes contact failure in LED modules?

Common causes include oxidation/corrosion, mechanical wear from repeated cycling, thermal stress causing material fatigue, and contamination from dust or flux residues.

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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