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LED/Laser Diode Component – Computer, Electronic and Optical Product Manufacturing

Component Specifications

Definition

An LED (Light Emitting Diode) or Laser Diode is a semiconductor device that converts electrical energy into light through electroluminescence. In industrial contexts, these components serve as critical elements in light sources and detectors, providing controlled, monochromatic, or broadband illumination for applications such as machine vision, optical sensing, barcode scanning, alignment systems, and quality inspection. They offer advantages including long lifespan, energy efficiency, fast response times, and compact form factors.

Working Principle

LEDs operate via electroluminescence in a semiconductor p-n junction, where electron-hole recombination releases photons. Laser diodes function on stimulated emission within an optical cavity, producing coherent, monochromatic light with high directionality. Both are driven by forward-biased electrical current, with output wavelength determined by the semiconductor bandgap and material composition.

Materials

Semiconductor materials: Gallium Arsenide (GaAs), Gallium Nitride (GaN), Indium Gallium Nitride (InGaN), Aluminum Gallium Indium Phosphide (AlGaInP) for various wavelengths (infrared to ultraviolet). Package materials: epoxy resin, ceramic, or metal housings with glass or plastic lenses.

Technical Parameters

Lifetime 25,000-100,000 hours
Wavelength 400-1600 nm
Optical Power 1 mW to 10 W
Viewing Angle 5-120 degrees
Forward Voltage 1.8-4.0 V
Operating Current 10 mA to 2 A

Standards

ISO 13695, IEC 60825-1, DIN EN 60825-1

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for LED/Laser Diode.

Parent Products

This component is used in the following industrial products

Light Source/Detector

Integrated optical component that emits and receives light signals for position/speed detection in feedback systems.

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Engineering Analysis

Risks & Mitigation

Thermal degradation from inadequate heat dissipation
Electrostatic discharge (ESD) damage during handling
Optical output decay over time
Wavelength drift with temperature changes

FMEA Triads

Trigger: Excessive operating current or ambient temperature
Failure: Catastrophic thermal runaway leading to permanent damage
Mitigation: Implement current limiting circuits, thermal sensors, and adequate heat sinking; adhere to derating guidelines.

Trigger: Mechanical stress or vibration in harsh industrial environments
Failure: Cracked semiconductor die or broken wire bonds, causing intermittent or complete failure
Mitigation: Use ruggedized packaging, shock-absorbing mounts, and conformal coating; follow proper installation procedures.

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

Wavelength tolerance ±2-5 nm, optical power tolerance ±10-20% depending on grade

Test Method

IEC 60747-5-5 for optoelectronic devices, including luminous flux measurement, spectral analysis, and lifetime testing under controlled conditions.

Buyer Feedback

★★★★☆ 4.5 / 5.0 (17 reviews)

"The technical documentation for this LED/Laser Diode is very thorough, especially regarding technical reliability."

"Reliable performance in harsh Computer, Electronic and Optical Product Manufacturing environments. No issues with the LED/Laser Diode so far."

"Testing the LED/Laser Diode now; the technical reliability results are within 1% of the laboratory datasheet."

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Frequently Asked Questions

What is the difference between an LED and a Laser Diode in industrial applications?

LEDs produce incoherent, broad-spectrum light suitable for general illumination and sensing, while laser diodes emit coherent, monochromatic light with high directionality, ideal for precision measurement, alignment, and high-resolution scanning.

How do environmental factors affect LED/Laser Diode performance?

Temperature variations can shift wavelength and reduce output efficiency; humidity may cause corrosion. Proper heat sinking, sealed packaging, and operating within specified temperature ranges (typically -40°C to +85°C) are critical for reliability.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

LED/Laser Diode