LED Emitters - Infrared, UV, Visible

Image Part Number Description / PDF Quantity Rfq
SFH 4209

SFH 4209

OSRAM Opto Semiconductors, Inc.

EMITTER IR 950NM 100MA SMD

0

LD 242-2/3

LD 242-2/3

OSRAM Opto Semiconductors, Inc.

EMITTER IR 950NM 300MA TO-18

0

SFH 4203-Z

SFH 4203-Z

OSRAM Opto Semiconductors, Inc.

EMITTER IR 950NM 100MA 2015

0

SFH 4250S-S

SFH 4250S-S

OSRAM Opto Semiconductors, Inc.

POWER TOPLED

0

SFH 4203

SFH 4203

OSRAM Opto Semiconductors, Inc.

EMITTER IR 950NM 100MA SMD

0

SFH 482-2/3

SFH 482-2/3

OSRAM Opto Semiconductors, Inc.

EMITTER IR 880NM 200MA TO-18

0

SFH 4516

SFH 4516

OSRAM Opto Semiconductors, Inc.

EMITTER IR 950NM 100MA RADIAL

0

SFH 4235-Z

SFH 4235-Z

OSRAM Opto Semiconductors, Inc.

EMITTER IR 860NM 1A SMD

0

SFH 4740

SFH 4740

OSRAM Opto Semiconductors, Inc.

EMITTER IR 860NM 1A MODULE

0

SFH 4289

SFH 4289

OSRAM Opto Semiconductors, Inc.

EMITTER IR 880NM 100MA SMD

0

SFH 4750

SFH 4750

OSRAM Opto Semiconductors, Inc.

EMITTER IR 850NM 1A STAR

0

SFH 4883

SFH 4883

OSRAM Opto Semiconductors, Inc.

EMITTER IR 880NM 200MA TO-46

0

SFH 405

SFH 405

OSRAM Opto Semiconductors, Inc.

EMITTER IR 950NM 40MA RADIAL

0

SFH 4554-DWEW

SFH 4554-DWEW

OSRAM Opto Semiconductors, Inc.

RADIAL T1 3/4

0

SFH 4046

SFH 4046

OSRAM Opto Semiconductors, Inc.

EMITTER IR 950NM 70MA 1206

0

SFH 4580

SFH 4580

OSRAM Opto Semiconductors, Inc.

EMITTER IR 880NM 100MA RADIAL

0

SFH 4252-Z

SFH 4252-Z

OSRAM Opto Semiconductors, Inc.

EMITTER IR 850NM 100MA 2-LCC

0

SFH 485-2

SFH 485-2

OSRAM Opto Semiconductors, Inc.

EMITTER IR 880NM 100MA T 1 3/4

0

SFH 4735

SFH 4735

OSRAM Opto Semiconductors, Inc.

OSLON BLACK FLAT

0

SFH 421

SFH 421

OSRAM Opto Semiconductors, Inc.

EMITTER IR 880NM 100MA SMD

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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