LED Indication - Discrete

Part Number	Description / PDF	Quantity
NTE30015 NTE Electronics, Inc.	LED-T-1 RIGHT ANGLE GREEN	279
NTE30005 NTE Electronics, Inc.	LED-SMD 0603 RED	1476
NTE30105 NTE Electronics, Inc.	LED-YEL/YEL_GRN 5MM 3LEAD	7047
NTE30153-10 NTE Electronics, Inc.	LED 5MM RGB COMM ANODE 10PCS	38
NTE3013 NTE Electronics, Inc.	LED-RED JEWEL	73
NTE30089 NTE Electronics, Inc.	LED-SMD SOT-23 YELLOW	2317
NTE3002 NTE Electronics, Inc.	LED-YEL LO PROFILE	2763
NTE30106 NTE Electronics, Inc.	LED-RED/YEL_GRN 5MM 3LEAD	3130
NTE30160 NTE Electronics, Inc.	LED 10MM RGB COMMON CATH	2545
NTE3142 NTE Electronics, Inc.	LED-3MM YELLOW	1482
NTE30101 NTE Electronics, Inc.	LED-YEL/YEL_GRN 3MM 3LEAD	1793
NTE30002 NTE Electronics, Inc.	LED-SMD 0805 RED	504
NTE30156-10 NTE Electronics, Inc.	LED 5MM RGB COMMON CATH 10PCS	8
NTE30014 NTE Electronics, Inc.	LED-T-1 RIGHT ANGLE RED	303
NTE30146 NTE Electronics, Inc.	LED-3MM RED DIFFUSED	6631
NTE30123 NTE Electronics, Inc.	LED-8MM PURPLE	0
NTE30156 NTE Electronics, Inc.	LED 5MM RGB COMMON CATH	2410
NTE30076 NTE Electronics, Inc.	LED-SMD 1206 SUPER YELLOW	1933
NTE30058 NTE Electronics, Inc.	LED-8MM BLUE	996
NTE30090 NTE Electronics, Inc.	LED-SMD SOT-23 RED/YELLOW	2232

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