LED Indication - Discrete

Part Number	Description / PDF	Quantity
NTE30158-10 NTE Electronics, Inc.	LED 10MM RGB COMMON ANODE 10PCS	9
NTE3184 NTE Electronics, Inc.	LED-BLUE CLEAR T-1	42
NTE30149 NTE Electronics, Inc.	LED-3MM WHITE DIFFUSED	6488
NTE30023 NTE Electronics, Inc.	LED-SMD 0805 SUPER BLUE	912
NTE3004 NTE Electronics, Inc.	LED-RED T3/4	653
NTE30077 NTE Electronics, Inc.	LED-SMD 1206 SUPER ORANGE	2020
NTE30020 NTE Electronics, Inc.	LED-SMD 0603 SUPER WHITE	492
NTE3141 NTE Electronics, Inc.	LED-3MM YELLOW/GREEN	1999
NTE3133 NTE Electronics, Inc.	LED-MINIATURE YEL/GRN	950
NTE3180 NTE Electronics, Inc.	LED-RED RECTANGULAR	268
NTE3160 NTE Electronics, Inc.	LED-RECTANGULAR IND.RED	732
NTE3012 NTE Electronics, Inc.	LED-RED	1527
NTE3168 NTE Electronics, Inc.	LED-RECTANGULAR IND.YELLO	564
NTE3182 NTE Electronics, Inc.	LED-YELLOW RECTANGULAR	36
NTE30037 NTE Electronics, Inc.	LED-5MM YELLOW GREEN	1716
NTE30053 NTE Electronics, Inc.	LED-8MM YEL/GRN	8049
NTE30082 NTE Electronics, Inc.	LED-SMD RT ANG SUP GREEN	2094
NTE30180-W NTE Electronics, Inc.	LED 3W WHITE STAR PCB	9
NTE30041 NTE Electronics, Inc.	LED-5MM DEEP RED	5861
NTE30033 NTE Electronics, Inc.	LED-3MM ORANGE	2737

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