H21LTI Product Overview

Introduction

The H21LTI is a versatile optoelectronic device that belongs to the category of optical sensors. This sensor is widely used in various applications due to its unique characteristics and functional features. In this entry, we will provide an overview of the H21LTI, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Optical Sensor
• Use: Detection of light intensity and proximity sensing
• Characteristics: High sensitivity, compact size, low power consumption
• Package: Compact housing with integrated lens
• Essence: Utilizes a phototransistor for light detection and proximity sensing
• Packaging/Quantity: Typically available in reels or trays containing multiple units

Specifications

• Operating Wavelength: 950nm
• Output Type: Phototransistor
• Maximum Collector-Emitter Voltage: 32V
• Collector Current: 20mA
• Power Dissipation: 100mW
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The H21LTI sensor typically consists of three pins: 1. Emitter (E): Anode of the internal LED emitter 2. Collector (C): Collector of the internal phototransistor 3. Base (B): Base of the internal phototransistor

Functional Features

• Light Intensity Detection: The sensor can accurately detect variations in light intensity.
• Proximity Sensing: Capable of detecting the presence or absence of objects in close proximity.
• Compact Design: Small form factor enables integration into various devices and systems.

Advantages and Disadvantages

Advantages

• High sensitivity for accurate detection
• Low power consumption
• Compact size for easy integration

Disadvantages

• Limited operating temperature range
• Susceptible to ambient light interference in certain applications

Working Principles

The H21LTI operates based on the principle of light modulation and phototransistor amplification. When light falls on the phototransistor, it causes a change in the collector current, which is then utilized for light intensity detection and proximity sensing.

Detailed Application Field Plans

The H21LTI sensor finds extensive use in various applications, including: - Automatic Lighting Control: Used in automatic lighting systems to adjust brightness based on ambient light conditions. - Object Detection: Employed in proximity sensors for detecting the presence of objects in automated machinery. - Security Systems: Integrated into security systems for motion detection and intrusion alerting.

Detailed and Complete Alternative Models

• H22LTI: A variant with extended operating temperature range
• H23LTI: Enhanced sensitivity model for low-light environments
• H24LTI: High-speed response model for rapid detection applications

In conclusion, the H21LTI optical sensor offers a reliable solution for light intensity detection and proximity sensing in various applications. Its compact design, high sensitivity, and low power consumption make it a preferred choice for designers and engineers seeking efficient optoelectronic solutions.

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