LED Emitters - Infrared, UV, Visible

Image Part Number Description / PDF Quantity Rfq
QED423

QED423

Sanyo Semiconductor/ON Semiconductor

EMITTER IR 880NM 100MA TO-46

0

QEC122C4R0

QEC122C4R0

Sanyo Semiconductor/ON Semiconductor

EMITTER IR 880NM 50MA RADIAL

0

LED56

LED56

Sanyo Semiconductor/ON Semiconductor

EMITTER IR 940NM 100MA TO-46

0

CQX15

CQX15

Sanyo Semiconductor/ON Semiconductor

EMITTER IR 940NM 100MA TO-46

0

QED523

QED523

Sanyo Semiconductor/ON Semiconductor

EMITTER IR 880NM 100MA TO-46

0

QEC112

QEC112

Sanyo Semiconductor/ON Semiconductor

EMITTER IR 940NM 50MA RADIAL

0

LED55C

LED55C

Sanyo Semiconductor/ON Semiconductor

EMITTER IR 940NM 100MA TO-46

0

LED55B

LED55B

Sanyo Semiconductor/ON Semiconductor

EMITTER IR 940NM 100MA TO-46

0

F5D2

F5D2

Sanyo Semiconductor/ON Semiconductor

EMITTER IR 880NM 100MA TO-46

0

1N6265

1N6265

Sanyo Semiconductor/ON Semiconductor

EMITTER IR 940NM 100MA TO-46

0

QEC113C6R0

QEC113C6R0

Sanyo Semiconductor/ON Semiconductor

EMITTER IR 940NM 50MA RADIAL

0

QEC122

QEC122

Sanyo Semiconductor/ON Semiconductor

EMITTER IR 880NM 50MA RADIAL

0

QED233A4R0_F132

QED233A4R0_F132

Sanyo Semiconductor/ON Semiconductor

EMITTER IR 940NM 100MA RADIAL

0

QED222

QED222

Sanyo Semiconductor/ON Semiconductor

EMITTER IR 880NM 100MA RADIAL

0

CQX14

CQX14

Sanyo Semiconductor/ON Semiconductor

EMITTER IR 940NM 100MA TO-46

0

QED121A4R0

QED121A4R0

Sanyo Semiconductor/ON Semiconductor

EMITTER IR 880NM 100MA RADIAL

0

QED234A4R0

QED234A4R0

Sanyo Semiconductor/ON Semiconductor

EMITTER IR 940NM 100MA RADIAL

0

CQX16

CQX16

Sanyo Semiconductor/ON Semiconductor

EMITTER IR 940NM 100MA TO-46

0

QEB441

QEB441

Sanyo Semiconductor/ON Semiconductor

EMITTER VISIBLE 730NM 100MA PLCC

0

QED122A3R0

QED122A3R0

Sanyo Semiconductor/ON Semiconductor

EMITTER IR 880NM 100MA RADIAL

0

LED Emitters - Infrared, UV, Visible

1. Overview

Light Emitting Diodes (LEDs) are semiconductor devices that convert electrical energy into light. The categories of infrared (IR), ultraviolet (UV), and visible LEDs are differentiated by their emission wavelengths. These devices play critical roles in modern technology, enabling applications from communication systems to medical diagnostics, with advantages including energy efficiency, compact size, and long operational lifetimes.

2. Main Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
Infrared LEDs850-940 nm wavelength, low power consumption, invisible emissionRemote controls, night vision cameras, optical sensors
UV LEDs280-400 nm wavelength, germicidal properties, high photon energyWater purification, counterfeit detection, medical disinfection
Visible LEDs400-700 nm wavelength, high brightness, color tunabilityLighting, displays, automotive indicators

3. Structure and Composition

LED emitters typically consist of: - Die: Semiconductor material (e.g., GaAs for IR, AlGaN for UV, InGaN for visible) - Substrate: Sapphire or silicon carbide for mechanical support - Encapsulation: Epoxy or silicone lens for light extraction and protection - Contact Layers: Metal electrodes for electrical connection - Thermal Pad: For heat dissipation in high-power devices

4. Key Technical Specifications

ParameterDescriptionImportance
Wavelength ( )Peak emission spectrumDetermines application suitability
Optical PowerLight output (mW or W)Performance in sensing/illumination
Efficiency (W/W)Electrical-to-optical conversion rateEnergy consumption and thermal management
Viewing AngleLight emission spread ( )Optical design flexibility
Operating Temperature-40 C to +125 C rangeReliability in harsh environments

5. Application Fields

Major industries include: - Consumer Electronics: Smartphones (proximity sensors), TVs (backlighting) - Healthcare: Pulse oximeters (IR), sterilization equipment (UV) - Industrial: Machine vision systems (visible), chemical detection (UV) - Security: Surveillance cameras (IR), document authentication (UV) - Automotive: Brake lights (visible), LiDAR systems (IR)

6. Leading Manufacturers and Products

ManufacturerProduct ExamplesKey Features
OSRAM OptoSFH 4715A (IR)940 nm, 1.5 W radiant power
Cree LEDUV5T-3535 (UV)365 nm, 120 mW output
Nichia CorporationNCSxW215BS (Visible)White LED with 215 lm output

7. Selection Recommendations

Key factors include: - Spectral matching to target application (e.g., 280-320 nm for DNA analysis) - Thermal management requirements (e.g., heatsinks for >1 W devices) - Environmental conditions (e.g., IP67 rating for outdoor use) - Cost vs. performance tradeoffs (e.g., high-efficiency UV LEDs for sterilization) - Compatibility with drive electronics (current/voltage specifications)

8. Industry Trends

Emerging developments: - Miniaturization for wearable devices (e.g., sub-1 mm IR LEDs) - Increased UV-C efficiency (targeting 10% wall-plug efficiency) - Integration with IoT systems (smart lighting networks) - Advancements in phosphor conversion for visible LEDs - Wide bandgap semiconductor adoption (GaN-on-SiC substrates) - Environmental regulations driving mercury-free UV solutions

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