LED Indication - Discrete

Image Part Number Description / PDF Quantity Rfq
SSL-LX5093SRSRD

SSL-LX5093SRSRD

Lumex, Inc.

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

0

SSL-LX5099SISYW

SSL-LX5099SISYW

Lumex, Inc.

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

0

SSL-LX5093XRC

SSL-LX5093XRC

Lumex, Inc.

LED RED CLEAR T-1 3/4 T/H

0

SSL-LX30FT4GD

SSL-LX30FT4GD

Lumex, Inc.

LED GREEN DIFFUSED T-1 T/H

0

SML-LX2530IGC-TR

SML-LX2530IGC-TR

Lumex, Inc.

LED 635/565NM IR/G CLR 2530 T/R

0

SSL-LX507DT3SYT

SSL-LX507DT3SYT

Lumex, Inc.

LED YLW CLEAR T-1 3/4 DIMPLE T/H

0

SSS-LX5093YD-500B

SSS-LX5093YD-500B

Lumex, Inc.

LED T-5MM 585NM YLW DIFF W/SPCR

0

SSL-LX433ID

SSL-LX433ID

Lumex, Inc.

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

0

SSL-LX5093SIC

SSL-LX5093SIC

Lumex, Inc.

LED RED CLEAR T-1 3/4 T/H

0

SSS-LX5093ID-500B

SSS-LX5093ID-500B

Lumex, Inc.

LED T-5MM 635NM IRED DIFF W/SPCR

0

SSL-LX25583GD

SSL-LX25583GD

Lumex, Inc.

LED GRN DIFF RECT 2.5MMX5MM T/H

0

SSL-LX3044SID

SSL-LX3044SID

Lumex, Inc.

LED RED DIFFUSED T-1 T/H

0

SSL-LX4064GD

SSL-LX4064GD

Lumex, Inc.

LED GREEN DIFFUSED T-4MM T/H

0

SSL-LX5093UPGT

SSL-LX5093UPGT

Lumex, Inc.

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

0

SSL-LX509E3SIT

SSL-LX509E3SIT

Lumex, Inc.

LED RED CLEAR T-5 T/H

0

SSL-LX5093GD-125

SSL-LX5093GD-125

Lumex, Inc.

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

0

SML-LXR0804RGBC-TR

SML-LXR0804RGBC-TR

Lumex, Inc.

2.0(L)*1.4(W)*0.9(H) MM, SMT LED

11966

SSL-LX5093SGT

SSL-LX5093SGT

Lumex, Inc.

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

0

SSL-LX3064SRD

SSL-LX3064SRD

Lumex, Inc.

LED T-3MM 660NM SRED DIFF

0

SML-LXR44UPGC-TR

SML-LXR44UPGC-TR

Lumex, Inc.

LED GREEN CLEAR BOOMERANG 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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