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

Part Number	Description / PDF	Quantity
6300T15 Visual Communications Company, LLC	LED SINGLE RED/GREEN RT ANG SMD	1121
5352T5-5VLC Visual Communications Company, LLC	LED GREEN T-3/4 RT ANG 5V PCB	368
5693F7_7_7-A Visual Communications Company, LLC	LED YELLOW T1 3-HIGH ASSY	422
5310F5 Visual Communications Company, LLC	LED GREEN T1 VERTICAL PCB	3827
6300T1 Visual Communications Company, LLC	LED SINGLE RED RIGHT ANGLE SMD	297
5350T7LC Visual Communications Company, LLC	LED YELLOW T-3/4 RT ANG LC PCB	687
5300H1 Visual Communications Company, LLC	LED RED T1-3/4 RT ANG PCB	14923
5600F5 Visual Communications Company, LLC	LED GREEN T1 RIGHT ANGLE PCB	29799
5310F1 Visual Communications Company, LLC	LED RED T1 VERTICAL PCB	1771
5650F7LC Visual Communications Company, LLC	LED YELLOW T1 RIGHT ANG LC PCB	0
5331H7 Visual Communications Company, LLC	LED YELLOW T1-3/4 .72" VERTICAL	1897
5370T5LC Visual Communications Company, LLC	LED GREEN T-3/4 VERT LOW CUR PCB	0
5600F5LC Visual Communications Company, LLC	LED T1 NM GREEN 565RA ASSY	120
5381H5 Visual Communications Company, LLC	LED GREEN T1-3/4 VERTICAL PCB	414
5306H7 Visual Communications Company, LLC	LED YELLOW T1-3/4 RT ANG PCB	1019
5608F5 Visual Communications Company, LLC	LED GREEN T1 RIGHT ANGLE PCB	2331
5693F5_5_5-A Visual Communications Company, LLC	LED GREEN T1 3-HIGH ASSY	1961
5600F7 Visual Communications Company, LLC	LED YELLOW T1 RIGHT ANGLE PCB	4285
5694F1_1_1_1-A Visual Communications Company, LLC	LED RED T1 4HIGH RTANG	193
6300T7 Visual Communications Company, LLC	LED SINGLE YELLOW RT ANG SMD	381

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