INDUSTRY COMPONENT

LED Chip Array

LED chip array is a compact arrangement of multiple LED semiconductor chips on a substrate, designed for high-density illumination in decorative lighting applications.

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Component Specifications

Definition
An LED chip array consists of multiple individual LED semiconductor dies mounted on a common substrate, typically using surface-mount technology (SMT) or chip-on-board (COB) packaging. These arrays are engineered to provide uniform light distribution, precise color mixing, and efficient thermal management. In LED decorative lights, they serve as the primary light-emitting source, enabling complex lighting patterns, dynamic color changes, and energy-efficient illumination. The array configuration allows for controlled current distribution across chips, ensuring consistent brightness and color temperature while minimizing hotspots.
Working Principle
LED chip arrays operate on electroluminescence, where electrical current passes through semiconductor materials (typically gallium nitride-based compounds), causing electrons to recombine with electron holes and release energy as photons. In an array configuration, chips are connected in series, parallel, or hybrid circuits to achieve desired voltage, current, and brightness characteristics. A driver circuit regulates power input, while thermal management systems dissipate heat to maintain optimal performance and longevity.
Materials
Semiconductor: Gallium nitride (GaN), indium gallium nitride (InGaN), aluminum gallium indium phosphide (AlGaInP). Substrate: Aluminum oxide (Al2O3), silicon carbide (SiC), or ceramic. Encapsulation: Epoxy resin or silicone with phosphor coating for color conversion. Electrodes: Gold or copper wire bonding. Thermal interface: Thermal paste or pads.
Technical Parameters
  • CRI 80-95
  • Lifespan 25,000 to 50,000 hours
  • Chip Count 8-256 chips per array
  • Power Rating 0.5W to 10W per array
  • Luminous Flux 50-1000 lumens per array
  • Viewing Angle 120-160 degrees
  • Voltage Range 3V to 48V DC
  • Current per Chip 20mA to 350mA
  • Color Temperature 2700K to 6500K
  • Operating Temperature -40°C to +85°C
Standards
ISO 9241-307, DIN EN 62471, IEC 62031

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for LED Chip Array.

LED chip array decorative lighting SMT LED COB LED semiconductor lighting LED module lighting component energy-efficient LED LED Chip Array in Electrical Equipment Manufacturing

Parent Products

This component is used in the following industrial products

LED Decorative Lights

Light-emitting diode-based illumination devices designed primarily for aesthetic enhancement rather than functional lighting.

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Engineering Analysis

Risks & Mitigation
  • Thermal runaway due to poor heat dissipation
  • Color inconsistency between chips
  • Electrostatic discharge damage during handling
  • Moisture ingress leading to corrosion
  • Driver circuit failure causing flickering
FMEA Triads
Trigger: Inadequate thermal interface material
Failure: Overheating reduces luminous output by 30%
Mitigation: Use high-conductivity thermal paste and aluminum heat sinks with fin design
Trigger: Poor soldering joints
Failure: Intermittent connections cause flickering
Mitigation: Implement automated optical inspection (AOI) and X-ray testing during manufacturing
Trigger: Voltage spikes from driver
Failure: Chip degradation reduces lifespan by 50%
Mitigation: Incorporate surge protection circuits and constant current drivers

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±5% for voltage, ±10% for luminous flux, ±200K for color temperature
Test Method
LM-79 for photometric testing, LM-80 for lumen maintenance, thermal imaging for heat distribution, salt spray test for corrosion resistance

Buyer Feedback

★★★★☆ 4.7 / 5.0 (38 reviews)

"Standard OEM quality for Electrical Equipment Manufacturing applications. The LED Chip Array arrived with full certification."

"Great transparency on the LED Chip Array components. Essential for our Electrical Equipment Manufacturing supply chain."

"The LED Chip Array we sourced perfectly fits our Electrical Equipment Manufacturing production line requirements."

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Frequently Asked Questions

What is the difference between SMT and COB LED arrays?

SMT (Surface-Mount Technology) arrays have individual LED chips mounted separately on a PCB, allowing for modular replacement. COB (Chip-on-Board) arrays mount multiple chips directly onto a substrate, creating a single light source with better thermal performance and higher lumen density.

How do LED chip arrays achieve color mixing in decorative lights?

Arrays combine red, green, blue (RGB) or RGBW chips with precise spacing and driver control. Pulse-width modulation (PWM) adjusts intensity of each color channel, enabling millions of color combinations and dynamic lighting effects.

What thermal management is required for LED arrays?

Heat sinks, thermal pads, and proper PCB design with copper layers are essential to dissipate heat, as excessive temperature reduces light output, shifts color, and shortens lifespan. Thermal resistance should be kept below 10°C/W.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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