Can I contact factories directly on CNFX?

CNFX is an open directory. Each factory profile provides direct contact information.

Infrared LED Component – Computer, Electronic and Optical Product Manufacturing

Component Specifications

Definition

An infrared LED (Light Emitting Diode) is a specialized semiconductor device that emits infrared light when electrically activated. As a core component in optocouplers, it converts electrical signals into optical signals, enabling galvanic isolation between input and output circuits to prevent electrical interference, noise, and voltage spikes in industrial control systems.

Working Principle

Operates on electroluminescence principle where current injection across a p-n junction in semiconductor materials (typically gallium arsenide or aluminum gallium arsenide) causes electron-hole recombination, releasing energy as infrared photons (wavelength 850-950 nm). In optocouplers, this infrared light crosses an isolation gap to activate a photodetector (phototransistor/diode), reconverting light back to electrical signals.

Materials

Semiconductor: Gallium Arsenide (GaAs) or Aluminum Gallium Arsenide (AlGaAs) substrate; Epoxy resin encapsulation with IR-transparent lens; Gold bonding wires; Copper alloy leads with tin plating.

Technical Parameters

Wavelength 850-950 nm
Viewing Angle 15-40 degrees
Rise/Fall Time 10-100 ns
Forward Current 20-100 mA
Forward Voltage 1.2-1.6V
Radiant Intensity 10-50 mW/sr
Operating Temperature -40°C to +85°C

Standards

ISO 9001, IEC 60747-5-2, JEDEC JESD22

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Infrared LED.

Parent Products

This component is used in the following industrial products

Optocoupler

An electronic component that transfers electrical signals between two isolated circuits using light waves

View Product Details

Optical Coupler

An electronic component that transfers electrical signals between two isolated circuits using light waves.

View Product Details

Engineering Analysis

Risks & Mitigation

Thermal degradation from overcurrent
Wavelength drift with temperature
Encapsulation cracking under mechanical stress
ESD sensitivity during handling

FMEA Triads

Trigger: Overcurrent operation exceeding rated forward current
Failure: LED junction overheating causing permanent brightness degradation or open circuit
Mitigation: Implement current-limiting resistors, use constant current drivers, and include thermal protection circuits

Trigger: Moisture ingress through encapsulation defects
Failure: Internal corrosion leading to intermittent operation or complete failure
Mitigation: Apply conformal coating, use hermetic packaging, and maintain controlled humidity during storage/assembly

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

±5% wavelength consistency, ±10% radiant intensity variation

Test Method

IEC 60747-5-2 for optoelectronic isolation, JEDEC JESD22 for reliability testing, spectral analysis for wavelength verification

Buyer Feedback

★★★★☆ 4.8 / 5.0 (12 reviews)

"Testing the Infrared LED now; the technical reliability results are within 1% of the laboratory datasheet."

"Impressive build quality. Especially the technical reliability is very stable during long-term operation."

"As a professional in the Computer, Electronic and Optical Product Manufacturing sector, I confirm this Infrared LED meets all ISO standards."

Related Components

Storage Module

Industrial-grade storage module for data logging and firmware in IoT gateways

Ethernet Controller

Industrial Ethernet controller for real-time data transmission in Industrial IoT Gateways.

Serial Interface

Serial interface for industrial data transmission between IoT gateways and legacy equipment using RS-232/422/485 protocols.

I/O Connectors

Industrial I/O connectors are ruggedized interfaces that enable reliable data and power transmission between sensors, actuators, and Industrial IoT Gateways in harsh environments.

Frequently Asked Questions

Why use infrared instead of visible light in optocouplers?

Infrared light (850-950 nm) provides higher efficiency in photodetector response, better isolation from ambient visible light interference, and allows compact design with minimal light leakage in industrial environments.

How does infrared LED affect optocoupler speed?

The LED's rise/fall time (typically 10-100 ns) directly determines optocoupler switching speed. Faster LEDs enable high-speed data transmission (up to 10 Mbps) in industrial communication interfaces.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Infrared LED