LED Indication - Discrete

Image Part Number Description / PDF Quantity Rfq
SML-LX0606SRSGC-TR

SML-LX0606SRSGC-TR

Lumex, Inc.

LED 660/565 SRD/SGN CLR 0606 T/R

0

SSL-LX3044IGW

SSL-LX3044IGW

Lumex, Inc.

LED GREEN/RED DIFFUSED T-1 T/H

0

SSL-LX3054SIC

SSL-LX3054SIC

Lumex, Inc.

LED RED DIFFUSED T-1 T/H

0

SSL-LX5093YD-125

SSL-LX5093YD-125

Lumex, Inc.

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

0

SML-LX0606SISUGC/A

SML-LX0606SISUGC/A

Lumex, Inc.

LED GREEN/RED CLEAR SMD

0

SSL-LX50595UPGC125

SSL-LX50595UPGC125

Lumex, Inc.

LED T-5MM 525NM UPGREEN CLEAR

0

SSL-LX5093SRC/E-TR

SSL-LX5093SRC/E-TR

Lumex, Inc.

LED T-5MM 660NM SRED CLEAR T/R

0

SML-LX0805DRC-TR

SML-LX0805DRC-TR

Lumex, Inc.

LED RED CLEAR SMD

0

SSL-LX2573HD

SSL-LX2573HD

Lumex, Inc.

LED RED DIFF RECT 2MMX5MM T/H

0

SSL-LX3054USBD

SSL-LX3054USBD

Lumex, Inc.

LED BLUE CLEAR T-1 T/H

0

SSL-LX40FT3GD

SSL-LX40FT3GD

Lumex, Inc.

LED GREEN DIFFUSED T-4MM T/H

0

SSL-LX5099SYSUGW

SSL-LX5099SYSUGW

Lumex, Inc.

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

145

SSL-LX5093GD-TR

SSL-LX5093GD-TR

Lumex, Inc.

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

0

SSL-LX5573YD

SSL-LX5573YD

Lumex, Inc.

LED YLW DIFF SQUARE TYPE LED T/H

0

SML-LXR0401UPGW5MA

SML-LXR0401UPGW5MA

Lumex, Inc.

1.0X0.55X0.3 MM. SMT SIDE VIEW L

99

SSL-LX3054SRC/C

SSL-LX3054SRC/C

Lumex, Inc.

LED T-3MM 660NM SRED CLEAR

0

SSS-LX5093SRD-350B

SSS-LX5093SRD-350B

Lumex, Inc.

LED T-5MM 660NM RED DIFF W/SPCR

0

SSL-LX5093GD-36697

SSL-LX5093GD-36697

Lumex, Inc.

LED T-5MM 565NM GREEN DIFF

0

SSL-LX5093GT-11

SSL-LX5093GT-11

Lumex, Inc.

LED T-5MM 565NM GREEN TRANSP

0

SML-LX1206YC-TR1

SML-LX1206YC-TR1

Lumex, Inc.

LED YELLOW CLEAR 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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