LED Indication - Discrete

Image Part Number Description / PDF Quantity Rfq
CP41B-GFS-CM0Q0674

CP41B-GFS-CM0Q0674

Cree

LED GREEN CLEAR P4 T/H

0

CLM3A-MKW-CVBXA233

CLM3A-MKW-CVBXA233

Cree

LED WARM WHITE DIFF 2PLCC SMD

0

C4SMG-RJS-CR14QBB1

C4SMG-RJS-CR14QBB1

Cree

LED RED CLEAR 4MM OVAL T/H

0

C4SMF-BJF-CR24Q4T2

C4SMF-BJF-CR24Q4T2

Cree

LED BLUE CLEAR 4MM OVAL T/H

0

CLM1B-GKW-CWAXA793

CLM1B-GKW-CWAXA793

Cree

LED GREEN CLEAR 2PLCC SMD

0

C503B-WAN-CBADA231

C503B-WAN-CBADA231

Cree

LED COOL WHITE CLR 5MM RND T/H

0

CP41B-BFS-CG0H0454

CP41B-BFS-CG0H0454

Cree

LED BLUE CLEAR P4 T/H

0

C503D-WAN-CCADB232

C503D-WAN-CCADB232

Cree

LED COOL WHITE CLR 5MM RND T/H

0

C503B-RAN-CY0B0AA2

C503B-RAN-CY0B0AA2

Cree

LED RED CLEAR 5MM ROUND T/H

0

SLV6A-FKB-CKNPRGJBB7A363

SLV6A-FKB-CKNPRGJBB7A363

Cree

LED RGB 6PLCC SMD

0

C4SMF-RJS-CU14QBB2

C4SMF-RJS-CU14QBB2

Cree

LED RED CLEAR 4MM OVAL T/H

0

C503D-WAN-CCADB231

C503D-WAN-CCADB231

Cree

LED COOL WHITE CLR 5MM RND T/H

0

C4SME-RJS-CS14QBB2

C4SME-RJS-CS14QBB2

Cree

LED RED CLEAR 4MM OVAL T/H

0

C503D-WAN-CCBDB232

C503D-WAN-CCBDB232

Cree

LED COOL WHITE CLR 5MM RND T/H

0

CLM1B-BKW-CTAUB363

CLM1B-BKW-CTAUB363

Cree

LED BLUE CLEAR 2PLCC SMD

0

C5SMB-AJS-CQ0T0AA2

C5SMB-AJS-CQ0T0AA2

Cree

LED AMBER CLEAR 5MM OVAL T/H

0

CLV6A-FKB-CK1P1G1BB7R3R3

CLV6A-FKB-CK1P1G1BB7R3R3

Cree

LED RGB CLEAR 6PLCC SMD

0

C4SMH-RJS-CS34QBB2

C4SMH-RJS-CS34QBB2

Cree

LED RED CLEAR 4MM OVAL T/H

0

C4SMH-RJS-CR0T0BB2

C4SMH-RJS-CR0T0BB2

Cree

LED RED CLEAR 4MM OVAL T/H

0

C535A-WJN-CU0V0231

C535A-WJN-CU0V0231

Cree

LED COOL WHITE CLR 5MM RND 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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