LED Indication - Discrete

Image Part Number Description / PDF Quantity Rfq
CLM1B-BKW-CTBUA453

CLM1B-BKW-CTBUA453

Cree

LED BLUE CLEAR 2PLCC SMD

0

CLQ6A-TKW-C1L1R1H1QBB7935AA3

CLQ6A-TKW-C1L1R1H1QBB7935AA3

Cree

LED INDICATOR RGBW 8PLCC

0

CP41B-GFS-CL0N0674

CP41B-GFS-CL0N0674

Cree

LED GREEN CLEAR P4 T/H

0

CLM1B-BKW-FTAUB363

CLM1B-BKW-FTAUB363

Cree

LED BLUE CLEAR 2PLCC SMD

0

CLX6D-FKB-CMPQSGKBB7A363

CLX6D-FKB-CMPQSGKBB7A363

Cree

LED RGB DIFFUSED 6PLCC SMD

0

C4SME-RJS-CS34QBB1

C4SME-RJS-CS34QBB1

Cree

LED RED CLEAR 4MM OVAL T/H

0

CLV1A-FKB-CJ1M1F1BB7R4S3

CLV1A-FKB-CJ1M1F1BB7R4S3

Cree

LED RGB 4PLCC SMD

0

CLX6A-FKB-CK1P1G1BB7D3D3

CLX6A-FKB-CK1P1G1BB7D3D3

Cree

LED RGB 6PLCC SMD

0

CP41B-BFS-CF0H0354

CP41B-BFS-CF0H0354

Cree

LED BLUE CLEAR P4 T/H

0

C4SMF-BJF-CS24Q4S2

C4SMF-BJF-CS24Q4S2

Cree

LED BLUE 4MM OVAL T/H

0

CLM3A-BKW-CTBUB453

CLM3A-BKW-CTBUB453

Cree

LED BLUE CLEAR 2PLCC SMD

0

C4SMF-BJF-CR0U0351

C4SMF-BJF-CR0U0351

Cree

LED BLUE CLEAR 4MM OVAL T/H

0

CLM4B-BKW-CTBVA363

CLM4B-BKW-CTBVA363

Cree

LED BLUE CLEAR 4PLCC SMD

0

C4SMG-RJS-CR34QBB1

C4SMG-RJS-CR34QBB1

Cree

LED RED CLEAR 4MM OVAL T/H

0

C4SMF-RJS-CT0W0BB2

C4SMF-RJS-CT0W0BB2

Cree

LED RED CLEAR 4MM OVAL T/H

0

CLM3A-WKW-CWAXA453

CLM3A-WKW-CWAXA453

Cree

LED COOL WHITE DIFF 2PLCC SMD

0

C4SMF-RJS-CT34QBB1

C4SMF-RJS-CT34QBB1

Cree

LED RED CLEAR 4MM OVAL T/H

0

C5SMF-BJS-CR24Q4T1

C5SMF-BJS-CR24Q4T1

Cree

LED BLUE CLEAR 5MM OVAL T/H

0

C4SMG-RJS-CR34QBB2

C4SMG-RJS-CR34QBB2

Cree

LED RED CLEAR 4MM OVAL T/H

0

CLV1A-FKB-CJ1M1F1BB7D4C3

CLV1A-FKB-CJ1M1F1BB7D4C3

Cree

LED RGB 4PLCC SMD

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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