LED Indication - Discrete

Image Part Number Description / PDF Quantity Rfq
XZCWD54F-1

XZCWD54F-1

SunLED

LED 2.0X1.25MM WH YLW FLUOR 0805

0

XBMR34D

XBMR34D

SunLED

LED RED DIFFUSED T-1 T/H

0

XSUY92D

XSUY92D

SunLED

LED YELLOW DIFF RAD LEAD T/H R/A

0

XZM2FW89S-1

XZM2FW89S-1

SunLED

LED 1603 RA WHITE WATER CLEAR

0

XSFRS23MBCA

XSFRS23MBCA

SunLED

LED CYAN DIFFUSED ICE CUBE T/H

0

XZCBDDGKME107SC2

XZCBDDGKME107SC2

SunLED

LED RGB CLEAR 6SMD

0

XZM2CYK89S-1

XZM2CYK89S-1

SunLED

LED YELLOW CLEAR 2SMD R/A

0

XZM2MOK79W

XZM2MOK79W

SunLED

LED ORANGE CLEAR 2SMD

0

XZFBB45SB

XZFBB45SB

SunLED

LED BLUE CLEAR 2PLCC SMD

0

XLCGS12W

XLCGS12W

SunLED

LED BLUE-GREEN CLEAR T-1 3/4 T/H

0

XZFBB60W

XZFBB60W

SunLED

LED BLUE CLEAR 2SMD

0

XLUYR58M

XLUYR58M

SunLED

LED RED/YELLOW DIFF T-1 3/4 T/H

0

XZDG80S-2HTA

XZDG80S-2HTA

SunLED

LED GREEN CLEAR 2SMD

0

XLCWD12W

XLCWD12W

SunLED

LAMP 5MM RND WHT WATER CLR TH

0

XZDGK45W30MAV-6

XZDGK45W30MAV-6

SunLED

LED GREEN CLEAR 4SMD

0

XLVG12D14V

XLVG12D14V

SunLED

LED GREEN DIFFUSED T-1 3/4 T/H

0

XZFWS56F

XZFWS56F

SunLED

LED 1104 RA WHITE YLW FLUOR SMD

0

XLM2MOK169W

XLM2MOK169W

SunLED

LED ORANGE CLEAR 5MM T/H

0

XZFWS67S

XZFWS67S

SunLED

LED RA WHITE WATER CLEAR 2PLCC

0

XZMYK79W

XZMYK79W

SunLED

LED YELLOW CLEAR 2SMD

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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