LEDs - Circuit Board Indicators, Arrays, Light Bars, Bar Graphs

Image Part Number Description / PDF Quantity Rfq
LTL-2400Y

LTL-2400Y

Lite-On, Inc.

LED LIGHT BAR RECT 1X1 YELLOW

0

LTL-155GHA

LTL-155GHA

Lite-On, Inc.

LED CBI 3MM GREEN GREEN DIFF

0

LTL-42DGNMHDP1

LTL-42DGNMHDP1

Lite-On, Inc.

LED CBI 3MM 2-LVL GREEN/GREEN

0

LTL-4211NHBP

LTL-4211NHBP

Lite-On, Inc.

LED CBI 3MM BRIGHT RED RED DIFF

0

LTL-4221NH129

LTL-4221NH129

Lite-On, Inc.

LED CBI 3MM HI EFF RED RED DIFF

0

LTL-2855G

LTL-2855G

Lite-On, Inc.

LED LIGHT BAR RECT 1X1 GREEN

0

LTL-4221NHBP

LTL-4221NHBP

Lite-On, Inc.

LED CBI 3MM HI EFF RED RED DIFF

0

LTL-42M4NH106

LTL-42M4NH106

Lite-On, Inc.

LED CBI 3MM 2-LEVEL GRN

0

LTL-307Y08A-D

LTL-307Y08A-D

Lite-On, Inc.

LED WITH SPACER 5MM YELLOW TH

0

LTL-307G08A-D

LTL-307G08A-D

Lite-On, Inc.

LED WITH SPACER 5MM GRN TH

0

LTL-4231NHBP

LTL-4231NHBP

Lite-On, Inc.

LED CBI 3MM GREEN GREEN DIFF

0

LTL-42D1NMHDP1

LTL-42D1NMHDP1

Lite-On, Inc.

LED CBI 3MM 2-LVL GRN/YLW

0

LTL-14CDJNHBP

LTL-14CDJNHBP

Lite-On, Inc.

LED CBI 3MM YLW/GRN WHT DIFF

0

LTL-2655HR

LTL-2655HR

Lite-On, Inc.

LED LIGHT BAR RECT 1X1 HE RED

0

LTL-155EHA

LTL-155EHA

Lite-On, Inc.

LED CBI 3MM HI EFF RED RED DIFF

0

LTL-816GE

LTL-816GE

Lite-On, Inc.

LED 3.2MM GRN TRANSP TH

0

LTL-4221NHCP

LTL-4221NHCP

Lite-On, Inc.

LED CBI 3MM HI EFF RED RED DIFF

0

LTL-4231NHCP

LTL-4231NHCP

Lite-On, Inc.

LED CBI 3MM YELLOW/GREEN

0

LTL-54173G

LTL-54173G

Lite-On, Inc.

LED LIGHT BAR RECT 1X1 GREEN

0

LTA-10101Y

LTA-10101Y

Lite-On, Inc.

LED LIGHT BAR ARRAY

0

LEDs - Circuit Board Indicators, Arrays, Light Bars, Bar Graphs

1. Overview

Light Emitting Diodes (LEDs) are semiconductor devices that convert electrical energy into light through electroluminescence. This product category includes indicators, arrays, light bars, and bar graphs designed for circuit board integration. LEDs serve critical roles in modern electronics for status indication, data visualization, and illumination. Their advantages include low power consumption, long lifespan, and compact form factors.

2. Main Types and Functional Classification

TypeFunctional FeaturesApplication Examples
IndicatorsSingle/dual-color point-source lighting for status indicationPower switches, network routers, medical device panels
ArraysMatrix configurations for alphanumeric/symbol displaySeven-segment displays, dot matrix modules
Light BarsLinear arrangements for directional lighting/brightness zonesAudio level meters, industrial control panels
Bar GraphsSegmented columns for quantitative visual representationBattery level indicators, sensor data visualization

3. Structure and Components

Typical LED components include:

  • Die: Gallium Nitride (GaN) or Indium Gallium Aluminum Phosphide (InGaAlP) semiconductor chips
  • Substrate: FR4 or metal-core PCB for thermal management
  • Encapsulation: Epoxy resin with diffused/optical lens structures
  • Driver Circuitry: Current-limiting resistors or PWM control ICs

4. Key Technical Specifications

ParameterDescriptionImportance
Luminous Intensity0.1-100 cd/m rangeDetermines visibility in various lighting conditions
Wavelength400-700 nm (visible spectrum)Defines color output accuracy
Forward Current2-30 mA typicalImpacts brightness and longevity
Viewing Angle5-120 depending on lens designDictates light distribution pattern
MTBF50,000-100,000 hoursSystem reliability prediction

5. Application Fields

Key industries include:

  • Consumer Electronics: Smartphones, laptops, home appliances
  • Industrial Automation: PLC status indicators, HMI panels
  • Automotive: Dashboard lighting, warning indicators
  • Medical Equipment: Diagnostic status visualization

6. Leading Manufacturers and Products

ManufacturerProduct SeriesKey Features
CreeXLamp XRHigh-brightness automotive indicators
OSRAMLED LineProgrammable RGB light bars
NichiaNSPWR70CSSUltra-compact bar graph displays
EverlightDLW-5xxxWaterproof array modules

7. Selection Recommendations

Key considerations:

  • Environmental Conditions: Temperature (-40 to +85 C operational range)
  • Optical Requirements: Color consistency (CIE 1931 standard)
  • Electrical Compatibility: Driver circuit matching
  • Form Factor: 0402-5050 package size constraints
  • Cost Optimization: Trade-off between performance and budget

Industry Trend Analysis

Current trends show:

  • Micronization: Development of 0201 package formats
  • Smart Integration: Embedded ICs for addressable lighting
  • Energy Efficiency: Sub-1mA operational current devices
  • Automotive Growth: HUD and LiDAR indicator applications
  • Medical Advancements: UV/IR spectrum specialized indicators

RFQ BOM Call Skype Email
Top