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

Image	Part Number	Description / PDF	Quantity	Rfq
	5352T1-5VLC Visual Communications Company, LLC	LED RED T-3/4 RT ANG 5V PCB	0
	6200T3 Visual Communications Company, LLC	LED AMBER 1.65MM RIGHT ANGLE SMD	0
	5610R7 Visual Communications Company, LLC	LED YELLOW RECTANG .965" HI ASSY	0
	5365F7;7 Visual Communications Company, LLC	LED YELLOW DUAL T1 RT ANG ASSY	0
	5640H5 Visual Communications Company, LLC	LED GREEN T1-3/4 QUAD RTANG PCB	0
	5312F5 Visual Communications Company, LLC	LED GREEN T1 VERTICAL PCB	0
	6255T7 Visual Communications Company, LLC	LED YELLOW 5.3X4.6X4.8MM SMD	0
	553-0133 Visual Communications Company, LLC	LED 3MM BI-LEVEL YELLOW RA PCB	0
	5300E11 Visual Communications Company, LLC	RED LED 10MA 2.1V	0
	5340H7 Visual Communications Company, LLC	LED SUPER BRITE YEL T1-3/4 VERT	0
	5682F7;7 Visual Communications Company, LLC	LED YEL/YEL DUAL T1 PC MOUNT	0
	5315F5 Visual Communications Company, LLC	LED GREEN T1 VERTICAL PCB	0
	6202T3-5V Visual Communications Company, LLC	LED AMBER RIGHT ANGLE 5V SMD	0
	6200T7 Visual Communications Company, LLC	LED YELLOW 1.65MM RT ANGLE SMD	0
	5380E1 Visual Communications Company, LLC	LED SUPER RED T1 3/4 RT ANG PCB	0
	6255T7LC Visual Communications Company, LLC	LED YELLOW 5.3X4.6X4.8MM SMD	0
	5652F1-5V Visual Communications Company, LLC	LED RED T1 QUAD RT ANG 5V PCB	0
	5340H5 Visual Communications Company, LLC	LED SUPER BRITE GRN T1-3/4 VERT	0
	5670H1_1 Visual Communications Company, LLC	LED RED T1-3/4 DUAL RT ANG PCB	0
	5611R7 Visual Communications Company, LLC	LED YELLOW RECTANG .725" HI ASSY	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

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