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

Image Part Number Description / PDF Quantity Rfq
5912004102F

5912004102F

Dialight

LED PRISM 3MM RND LC SQ RED SMD

0

SSA-LXB525GD

SSA-LXB525GD

Lumex, Inc.

LED ARRAY 2X5MM 5-SEG GREEN

395

5331H5

5331H5

Visual Communications Company, LLC

LED GREEN T1-3/4 .72" VERTICAL

3780

H485CBC-RP

H485CBC-RP

Califia Lighting (Bivar)

LED ASSY RA 1.8MM 4X1 R/G WH DFF

0

5962420013F

5962420013F

Dialight

596 PRISM SMD 1.6MM BILEVEL RND

0

5370T7

5370T7

Visual Communications Company, LLC

LED YELLOW T-3/4 VERTICAL PCB

0

5962324013F

5962324013F

Dialight

596 PRISM SMD 1.6MM BILEVEL RND

0

5615501060F

5615501060F

Dialight

LED 5MM VERT SUP CLEAR RED PC MT

10145

5505107F

5505107F

Dialight

LED 5MM RT ANG SUP DIFF RED PCMN

47

5640300222F

5640300222F

Dialight

LED 3HI 3MM 5V GREEN PC MNT

0

5555303F

5555303F

Dialight

LED 2MM QUAD 5V VERTICAL GREEN

244

5912004107F

5912004107F

Dialight

LED PRISM 3MM RND LC SQ RED SMD

0

5912304007F

5912304007F

Dialight

LED PRISM 3MM RND LC GRN SMD

1988

QLA874B-4A

QLA874B-4A

QT Brightek

LED 3MM BI-LVL RA ORANGE DIFF

214

MV67539MP7

MV67539MP7

Everlight Electronics

LED SS HI EFF RED DIFF PCB 5MM

0

5680102222F

5680102222F

Dialight

LED 4HI 3MM HI EFF GREEN PC MNT

1495

5530311F

5530311F

Dialight

LED 2HI 3MM 5V RED

0

XGUGX10D

XGUGX10D

SunLED

BARGRAPH 10-SEGMENT GREEN

9491

5322F1

5322F1

Visual Communications Company, LLC

LED RED T1 .25" HI RT ANG ASSY

0

FLP25R6.5-SUG

FLP25R6.5-SUG

Califia Lighting (Bivar)

LED LIGHT PIPE GREEN FLEX 6.5"

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