LED Indication - Discrete

Image Part Number Description / PDF Quantity Rfq
CLM4B-RKB-CWAXBAA3

CLM4B-RKB-CWAXBAA3

Cree

LED RED 4PLCC SMD

0

C566D-GFF-CX0Z0791

C566D-GFF-CX0Z0791

Cree

LED GREEN CLEAR 5MM OVAL T/H

0

C503C-RCS-CYAZAAA1

C503C-RCS-CYAZAAA1

Cree

LED RED CLEAR 5MM ROUND T/H

0

CLMVC-FKA-MF1G1L1BB7D3C3

CLMVC-FKA-MF1G1L1BB7D3C3

Cree

LED RGB CLEAR 4PLCC SMD

0

C503B-ACS-CYBZA252-030

C503B-ACS-CYBZA252-030

Cree

LED AMBER CLEAR 5MM ROUND T/H

0

C5SMF-RJF-CU34QBB2

C5SMF-RJF-CU34QBB2

Cree

LED RED CLEAR 5MM OVAL T/H

0

C503C-ACS-CYCZA342

C503C-ACS-CYCZA342

Cree

LED AMBER CLEAR 5MM ROUND T/H

0

C5SMF-RJF-CV14QBB2

C5SMF-RJF-CV14QBB2

Cree

LED RED CLEAR 5MM OVAL T/H

0

C503B-GAN-CB0C0781

C503B-GAN-CB0C0781

Cree

LED GREEN CLEAR 5MM ROUND T/H

0

C5SMF-BJF-CT34Q3T1

C5SMF-BJF-CT34Q3T1

Cree

LED BLUE 5MM OVAL T/H

0

CLX6F-BKB-CP14S3

CLX6F-BKB-CP14S3

Cree

LED BLUE 6PLCC SMD

0

C566D-BFE-CU14Q3S2

C566D-BFE-CU14Q3S2

Cree

LED BLUE CLEAR 5MM OVAL T/H

0

C503B-GCS-CY0Z0892

C503B-GCS-CY0Z0892

Cree

LED GREEN CLEAR 5MM ROUND T/H

0

CLM4B-BKB-CUAVA353

CLM4B-BKB-CUAVA353

Cree

LED BLUE 4PLCC SMD

0

CLMVC-FKA-CA1E1L81BB7C3C3

CLMVC-FKA-CA1E1L81BB7C3C3

Cree

LED RGB CLEAR 4PLCC SMD

0

C513A-WSS-CY0Z0342

C513A-WSS-CY0Z0342

Cree

LED WHITE 5MM ROUND T/H

0

C566D-BFE-CV14Q3S1

C566D-BFE-CV14Q3S1

Cree

LED BLUE CLEAR 5MM OVAL T/H

0

C566D-BFF-CU0W0351

C566D-BFF-CU0W0351

Cree

LED BLUE CLEAR 5MM OVAL T/H

0

C503B-GCN-CB0C0892

C503B-GCN-CB0C0892

Cree

LED GREEN CLEAR 5MM ROUND T/H

0

CP41B-WGS-CM0P0134

CP41B-WGS-CM0P0134

Cree

LED COOL WHITE CLEAR P4 T/H

0

LED Indication - Discrete

1. Overview

Discrete Light Emitting Diodes (LEDs) are single-chip optoelectronic devices that convert electrical energy into light through electroluminescence. This product category forms the foundation of modern indication systems, offering advantages including low power consumption, long lifespan, and high reliability. Their importance spans across consumer electronics, industrial equipment, automotive systems, and communication infrastructure.

2. Major Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
Visible LEDsEmits light in visible spectrum (400-700nm), available in multiple colorsIndicator lamps, display backlighting, decorative lighting
Infrared LEDsEmits 700nm-1mm wavelength radiation, invisible to human eyeRemote controls, security sensors, night vision systems
High-Brightness LEDsEnhanced luminous intensity (>1000mcd) with advanced packagingAutomotive lighting, outdoor displays, emergency signage
UV LEDsUltraviolet spectrum emission (280-400nm)Sterilization equipment, counterfeit detection, curing systems

3. Structure and Composition

Typical discrete LED construction includes:

  • Die: Semiconductor chip (GaN/InGaN for blue/green, AlGaInP for red)
  • Encapsulation: Epoxy or silicone lens for light extraction and protection
  • Lead Frame: Copper or iron alloy for electrical connection and heat dissipation
  • Phosphor Coating: Used in white LEDs for wavelength conversion
  • Reflective Cup: Optimizes light directionality

4. Key Technical Parameters

ParameterSignificanceTypical Range
WavelengthDetermines light color and application suitability375nm-940nm
Luminous IntensityMeasures brightness output (mcd)50-10,000mcd
Forward CurrentOperating current rating20-150mA
Forward VoltageElectrical potential drop1.8-3.6V
Viewing AngleLight emission spread measurement5 -120

5. Application Fields

Primary application sectors include:

  • Consumer Electronics: Mobile phone indicators, keyboard backlighting
  • Automotive: Dashboard indicators, brake light systems
  • Industrial: Machine status indicators, safety signage
  • Medical: Diagnostic equipment indicators, phototherapy devices
  • Telecommunications: Network equipment status lights

6. Leading Manufacturers and Products

ManufacturerProduct SeriesKey Features
Cree Inc.XLamp XP-G3High brightness (3200mcd), 120 viewing angle
OSRAM OptoOSTAR ProjectionHigh-power LED for automotive lighting
Nichia Corp.NSHU5991UV LED (365nm) for curing applications
Everlight ElectronicsLTST-C19HE8WTTri-color LED for RGB indication

7. Selection Recommendations

Key consideration factors:

  • Spectral Requirements: Match wavelength to application needs
  • Environmental Conditions: Temperature range (-40 C to +85 C typical)
  • Power Constraints: Select appropriate current/voltage ratings
  • Optical Design: Consider lens type and viewing angle
  • Reliability: Check MTTF (Mean Time to Failure) specifications

Industry Development Trends

Current technology directions include:

  • Miniaturization: Development of micro-LED ( LED) with dimensions <50 m
  • Efficiency Improvement: Targeting >300lm/W efficacy for visible LEDs
  • Smart Integration: Incorporating driver ICs and sensors in LED packages
  • Material Innovation: GaN-on-silicon substrates for cost reduction
  • Regulatory Compliance: RoHS/REACH compliant packaging materials
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