LED Indication - Discrete

Image	Part Number	Description / PDF	Quantity	Rfq
	GM1EG55200A Sharp Microelectronics	LED GREEN CLEAR 1608 SMD	0
	GM5BC01200AC Sharp Microelectronics	LED BLUE CLEAR 6050 SMD	0
	GM5BW05340AC Sharp Microelectronics	LED WHITE SMD	0
	GM5ZS03200Z Sharp Microelectronics	LED ORANGE CLEAR CHIP T/H	0
	GM5ZS01200A Sharp Microelectronics	LED ORANGE CLEAR 6050 SMD	0
	GM1JV35200AZ Sharp Microelectronics	LED AMBER 1608 SMD	0
	GM5WA94313A Sharp Microelectronics	LED RGB 627NM 523NM 463NM 1201	0
	GM5WA98333A Sharp Microelectronics	LED WHITE 4PLCC SURFACE MOUNT	0
	GM5EG95200A Sharp Microelectronics	LED GREEN CLEAR 3528 SMD	0
	GM1BN76340A Sharp Microelectronics	LED WHITE 2SMD	0
	GM1EG55200M Sharp Microelectronics	LED YELLOW/GREEN CHIP SMD	0
	GM5ZV01200A Sharp Microelectronics	LED AMBER CLEAR 6050 SMD	0
	GM1WA55310A Sharp Microelectronics	LED RED/GRN/BLU 1616 SMD	0
	GM1WA55360A Sharp Microelectronics	LED RGB 628NM 528NM 472NM 1616	0
	GM5BW96381A Sharp Microelectronics	LED WHITE 4PLCC SMD	0
	GM4BW83380A Sharp Microelectronics	LED SIDE VIEW LED SMD R/A	0
	GM5JR95200A Sharp Microelectronics	LED 3528 SMD	0
	GM4ZR83200AE Sharp Microelectronics	LED RED SIDE VIEW LED SMD R/A	0
	GM1JV35221AE Sharp Microelectronics	LED AMBER 1608 SMD	0
	GM5JJ95200AE Sharp Microelectronics	LED ORANGE CLEAR 3528 SMD	0

LED Indication - Discrete

1. Overview

Discrete Light Emitting Diodes (LEDs) are single-chip optoelectronic devices that convert electrical energy into light through electroluminescence. This product category forms the foundation of modern indication systems, offering advantages including low power consumption, long lifespan, and high reliability. Their importance spans across consumer electronics, industrial equipment, automotive systems, and communication infrastructure.

2. Major Types and Functional Classification

Type	Functional Characteristics	Application Examples
Visible LEDs	Emits light in visible spectrum (400-700nm), available in multiple colors	Indicator lamps, display backlighting, decorative lighting
Infrared LEDs	Emits 700nm-1mm wavelength radiation, invisible to human eye	Remote controls, security sensors, night vision systems
High-Brightness LEDs	Enhanced luminous intensity (>1000mcd) with advanced packaging	Automotive lighting, outdoor displays, emergency signage
UV LEDs	Ultraviolet spectrum emission (280-400nm)	Sterilization equipment, counterfeit detection, curing systems

3. Structure and Composition

Typical discrete LED construction includes:

Die: Semiconductor chip (GaN/InGaN for blue/green, AlGaInP for red)
Encapsulation: Epoxy or silicone lens for light extraction and protection
Lead Frame: Copper or iron alloy for electrical connection and heat dissipation
Phosphor Coating: Used in white LEDs for wavelength conversion
Reflective Cup: Optimizes light directionality

4. Key Technical Parameters

Parameter	Significance	Typical Range
Wavelength	Determines light color and application suitability	375nm-940nm
Luminous Intensity	Measures brightness output (mcd)	50-10,000mcd
Forward Current	Operating current rating	20-150mA
Forward Voltage	Electrical potential drop	1.8-3.6V
Viewing Angle	Light emission spread measurement	5 -120

5. Application Fields

Primary application sectors include:

Consumer Electronics: Mobile phone indicators, keyboard backlighting
Automotive: Dashboard indicators, brake light systems
Industrial: Machine status indicators, safety signage
Medical: Diagnostic equipment indicators, phototherapy devices
Telecommunications: Network equipment status lights

6. Leading Manufacturers and Products

Manufacturer	Product Series	Key Features
Cree Inc.	XLamp XP-G3	High brightness (3200mcd), 120 viewing angle
OSRAM Opto	OSTAR Projection	High-power LED for automotive lighting
Nichia Corp.	NSHU5991	UV LED (365nm) for curing applications
Everlight Electronics	LTST-C19HE8WT	Tri-color LED for RGB indication

7. Selection Recommendations

Key consideration factors:

Spectral Requirements: Match wavelength to application needs
Environmental Conditions: Temperature range (-40 C to +85 C typical)
Power Constraints: Select appropriate current/voltage ratings
Optical Design: Consider lens type and viewing angle
Reliability: Check MTTF (Mean Time to Failure) specifications

Industry Development Trends

Current technology directions include:

Miniaturization: Development of micro-LED ( LED) with dimensions <50 m
Efficiency Improvement: Targeting >300lm/W efficacy for visible LEDs
Smart Integration: Incorporating driver ICs and sensors in LED packages
Material Innovation: GaN-on-silicon substrates for cost reduction
Regulatory Compliance: RoHS/REACH compliant packaging materials