LED Indication - Discrete

Image Part Number Description / PDF Quantity Rfq
C5SMF-RJE-CU34QBB1

C5SMF-RJE-CU34QBB1

Cree

LED RED CLEAR 5MM OVAL T/H

0

C5SMF-BJF-CT34Q3T2

C5SMF-BJF-CT34Q3T2

Cree

LED BLUE 5MM OVAL T/H

0

C503B-BCS-CU0Y0461-030

C503B-BCS-CU0Y0461-030

Cree

LED BLUE CLEAR 5MM ROUND T/H

0

C5SMF-BJF-CR0U0352

C5SMF-BJF-CR0U0352

Cree

LED BLUE CLEAR 5MM OVAL T/H

0

C5SME-RJF-CS34QBB2

C5SME-RJF-CS34QBB2

Cree

LED RED CLR 5MM OVAL TH/SNAP ON

0

C566D-GFF-CX14Q7S2

C566D-GFF-CX14Q7S2

Cree

LED GREEN CLEAR 5MM OVAL T/H

0

CLV1L-FKB-CJQRNQEFGBB79353

CLV1L-FKB-CJQRNQEFGBB79353

Cree

LED RGB 3 IN 1 4PLCC SMD

0

C503B-GAS-CB0C0891

C503B-GAS-CB0C0891

Cree

LED GREEN CLEAR 5MM ROUND T/H

0

C566D-GFF-CY14Q7S2

C566D-GFF-CY14Q7S2

Cree

LED GREEN CLEAR 5MM OVAL T/H

0

C566D-GFF-CX0Z0792

C566D-GFF-CX0Z0792

Cree

LED GREEN CLEAR 5MM OVAL T/H

0

CLM2D-RPC-CXAZ0BB3

CLM2D-RPC-CXAZ0BB3

Cree

LED RED DIFFUSED 4PLCC SMD

0

CLP6B-MKW-CC0E0233

CLP6B-MKW-CC0E0233

Cree

LED WARM WHITE DIFF 6PLCC SMD

0

C503B-AAN-CA0B0341

C503B-AAN-CA0B0341

Cree

LED AMBER CLEAR 5MM ROUND T/H

0

CLP6B-MKW-CB0E0513

CLP6B-MKW-CB0E0513

Cree

LED WARM WHITE DIFF 6PLCC SMD

0

CP41B-WES-CM0P0234

CP41B-WES-CM0P0234

Cree

LED COOL WHITE CLEAR P4 T/H

0

C503B-RAN-CA0B0AA2

C503B-RAN-CA0B0AA2

Cree

LED RED CLEAR 5MM ROUND T/H

0

C503B-RCN-CYAYBAA1-030

C503B-RCN-CYAYBAA1-030

Cree

LED RED CLEAR 5MM ROUND T/H

0

C503B-RAS-CY0Z0AA2

C503B-RAS-CY0Z0AA2

Cree

LED RED CLEAR 5MM ROUND T/H

0

CLM3C-RKW-CUAVBAA3

CLM3C-RKW-CUAVBAA3

Cree

LED RED DIFFUSED 2PLCC SMD

0

C5SMF-BJF-CT34Q4T2

C5SMF-BJF-CT34Q4T2

Cree

LED BLUE 5MM OVAL 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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