LTR-209 Product Overview

Introduction

The LTR-209 is a versatile electronic component that belongs to the category of light sensors. This entry provides an in-depth overview of the LTR-209, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Light Sensor
• Use: Detecting ambient light levels
• Characteristics: High sensitivity, low power consumption
• Package: Surface-mount device (SMD)
• Essence: Phototransistor
• Packaging/Quantity: Tape and reel packaging, 3000 units per reel

Specifications

• Operating Voltage: 2.7V to 3.6V
• Output Type: Digital
• Response Time: 400ms
• Operating Temperature: -40°C to 85°C
• Wavelength Range: 300nm to 1100nm

Detailed Pin Configuration

The LTR-209 has a standard three-pin configuration: 1. Pin 1: VCC (Power supply) 2. Pin 2: GND (Ground) 3. Pin 3: OUT (Digital output)

Functional Features

• High sensitivity to ambient light
• Low power consumption for energy efficiency
• Digital output for easy interfacing with microcontrollers

Advantages and Disadvantages

Advantages

• Precise light detection in various environments
• Compact SMD package for space-constrained applications
• Wide operating temperature range for versatility

Disadvantages

• Limited wavelength range compared to some specialized sensors
• Susceptible to interference from certain artificial light sources

Working Principles

The LTR-209 operates based on the principle of phototransistor action. When exposed to light, the phototransistor generates a corresponding digital output signal based on the intensity of the incident light.

Detailed Application Field Plans

The LTR-209 finds extensive use in diverse applications, including: - Ambient light sensing in mobile devices and wearables - Automatic brightness adjustment in displays and backlit keyboards - Daylight harvesting systems for energy-efficient lighting control - Industrial automation for light-dependent process monitoring

Detailed and Complete Alternative Models

For users seeking alternative light sensors, the following models offer similar functionality: 1. LTR-301 - Higher sensitivity and wider wavelength range - Analog output for precise light level measurements 2. LTR-559 - Integrated infrared and visible light sensing - Low-profile package for space-saving designs

In conclusion, the LTR-209 serves as a reliable light sensor with its high sensitivity, low power consumption, and compact form factor. Its application spans across various industries, making it a valuable component in modern electronic systems.

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