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

Image	Part Number	Description / PDF	Quantity	Rfq
	MV63538MP8 Sanyo Semiconductor/ON Semiconductor	LED SS QUAD YELLOW DIFF PCB 5MM	0
	MR37519MP6 Sanyo Semiconductor/ON Semiconductor	LED SS 12V HE RED DIFF PCB 5MM	0
	MV34509MP8B Sanyo Semiconductor/ON Semiconductor	LED SS QUAD GREEN CLR PCB 5MM	0
	QLA764B3H Sanyo Semiconductor/ON Semiconductor	LED TRILEVEL RED/RED/RED 3MM	0
	MV33509MP6 Sanyo Semiconductor/ON Semiconductor	LED SS YELLOW CLEAR PCB 5MM	0
	MV5400MP2 Sanyo Semiconductor/ON Semiconductor	LED T 3/4 GREEN PC MOUNT	0
	MR30519MP5 Sanyo Semiconductor/ON Semiconductor	LED SS 12V RED DIFF PCB 5MM	0
	MV37509MP8B Sanyo Semiconductor/ON Semiconductor	LED SS QUAD HRED ORN CLR PCB 5MM	0
	MR34519MP6 Sanyo Semiconductor/ON Semiconductor	LED SS 12V GREEN DIFF PCB 5MM	0
	HLMP47409MP7 Sanyo Semiconductor/ON Semiconductor	LED SS GREEN DIFFUSED PCB 5MM	0
	HLMP47409MP6 Sanyo Semiconductor/ON Semiconductor	LED SS GREEN DIFFUSED PCB 5MM	0
	QLA764B3G Sanyo Semiconductor/ON Semiconductor	LED TRILEVEL GREEN/GREEN 3MM	0
	MV63538MP5 Sanyo Semiconductor/ON Semiconductor	LED SS YELLOW DIFFUSED PCB 5MM	0
	MV60539MP8 Sanyo Semiconductor/ON Semiconductor	LED SS QUAD RED DIFF PCB 5MM	0
	HLMPK155MP4B Sanyo Semiconductor/ON Semiconductor	LED ALG RED CLR RA STANDOFF 3MM	0
	QLA764BYGH Sanyo Semiconductor/ON Semiconductor	LED TRILEVEL YLW/GRN/RED 3MM	0
	MV67538MP6 Sanyo Semiconductor/ON Semiconductor	LED SS HE RED DIFF LP PCB 5MM	0
	HLMPD1509MP5 Sanyo Semiconductor/ON Semiconductor	LED ALGAAS HIRED LO CUR PCB 5MM	0
	HLMPD1019MP5 Sanyo Semiconductor/ON Semiconductor	LED ALGAAS HIRED LO CURR PCB 5MM	0
	MV37509MP5 Sanyo Semiconductor/ON Semiconductor	LED SS HE RED ORN CLEAR PCB 5MM	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