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

Part Number	Description / PDF	Quantity
5682F5_5 Visual Communications Company, LLC	LED GREEN/GREEN DUAL T1 PC MOUNT	1796
5650F5 Visual Communications Company, LLC	LED GREEN T1 QUAD RIGHT ANG PCB	2151
5331H1 Visual Communications Company, LLC	LED RED T1-3/4 .72" VERTICAL	5424
6200T7LC Visual Communications Company, LLC	LED YELL RIGHT ANGLE LO CUR SMD	1512
CMW01G Visual Communications Company, LLC	LED GREEN T1 MODULAR DIFFUSED	8106
5682F1_1 Visual Communications Company, LLC	LED RED/RED DUAL T1 PC MOUNT	3265
5305H3/5 Visual Communications Company, LLC	LED GRN/AMB T1-3/4 BI-CLR RA PCB	1463
5330H5 Visual Communications Company, LLC	LED GREEN T1-3/4 PCB	1459
553-0111 Visual Communications Company, LLC	LED 3MM BI-LEVEL RED RA PCB	13
5680F1_1 Visual Communications Company, LLC	LED RED T1 DUAL RIGHT ANGLE PCB	0
5360F1 Visual Communications Company, LLC	LED RED T-1 QUAD RT ANG PCB	2080
5306H1 Visual Communications Company, LLC	LED RED T1-3/4 RIGHT ANGLE PCB	365
5680F7_7 Visual Communications Company, LLC	LED YELLOW T1 DUAL RIGHT ANG PCB	0
5650F1LC Visual Communications Company, LLC	LED RED T1 QUAD RIGHT ANGLE PCB	4750
5307H5 Visual Communications Company, LLC	LED GREEN T1-3/4 RT ANG PCB	0
6300T75 Visual Communications Company, LLC	LED SINGLE YLW/GRN RT ANG SMD	0
5300H1/5 Visual Communications Company, LLC	LED RED/GRN BICLR T1-3/4 RT ANG	0
5380H7 Visual Communications Company, LLC	LED YELLOW T1-3/4 RIGHT ANG PCB	3775
5380H1 Visual Communications Company, LLC	LED RED T1-3/4 RIGHT ANGLE PCB	186
5684F1_1_1_1 Visual Communications Company, LLC	LED RED QUAD 2X2 T1 PCB	2839

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

Type	Functional Features	Application Examples
Indicators	Single/dual-color point-source lighting for status indication	Power switches, network routers, medical device panels
Arrays	Matrix configurations for alphanumeric/symbol display	Seven-segment displays, dot matrix modules
Light Bars	Linear arrangements for directional lighting/brightness zones	Audio level meters, industrial control panels
Bar Graphs	Segmented columns for quantitative visual representation	Battery 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

Parameter	Description	Importance
Luminous Intensity	0.1-100 cd/m range	Determines visibility in various lighting conditions
Wavelength	400-700 nm (visible spectrum)	Defines color output accuracy
Forward Current	2-30 mA typical	Impacts brightness and longevity
Viewing Angle	5-120 depending on lens design	Dictates light distribution pattern
MTBF	50,000-100,000 hours	System 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

Manufacturer	Product Series	Key Features
Cree	XLamp XR	High-brightness automotive indicators
OSRAM	LED Line	Programmable RGB light bars
Nichia	NSPWR70CSS	Ultra-compact bar graph displays
Everlight	DLW-5xxx	Waterproof 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