OPB820S3

Introduction

The OPB820S3 is a crucial component in the field of optoelectronics, specifically designed for use in various electronic devices and systems. This entry provides an in-depth overview of the OPB820S3, including its product category, basic information, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Product Category

The OPB820S3 belongs to the category of optoelectronic sensors, which are widely used in applications requiring precise detection and measurement of light or optical signals.

Basic Information Overview

• Use: The OPB820S3 is utilized for detecting the presence or absence of an object by utilizing an infrared emitting diode and a phototransistor.
• Characteristics: It is known for its high sensitivity, reliability, and compact design, making it suitable for various industrial and consumer applications.
• Package: The OPB820S3 is typically available in a compact, durable package that ensures protection from external elements and ease of integration into different systems.
• Essence: Its essence lies in providing accurate and efficient object detection capabilities in diverse environments.
• Packaging/Quantity: The sensor is commonly packaged individually or in sets, depending on the manufacturer's specifications and customer requirements.

Specifications

• Operating Wavelength: 950 nm
• Supply Voltage: 4.5 V to 5.5 V
• Output Type: Phototransistor
• Output Configuration: NPN
• Sensing Distance: Up to 0.125 inches (3.18 mm)

Detailed Pin Configuration

The OPB820S3 typically consists of three pins: 1. Anode of Infrared Emitting Diode 2. Cathode of Infrared Emitting Diode / Collector of Phototransistor 3. Emitter of Phototransistor

Functional Features

• High Sensitivity: The sensor exhibits high sensitivity to detect even subtle changes in the presence of objects.
• Compact Design: Its compact form factor allows for easy integration into various electronic systems.
• Reliability: The OPB820S3 offers reliable performance across different environmental conditions.

Advantages and Disadvantages

Advantages

• Precise Object Detection
• Compact Size
• Wide Operating Voltage Range

Disadvantages

• Limited Sensing Distance
• Susceptibility to Ambient Light Interference

Working Principles

The OPB820S3 operates based on the principle of modulated infrared light detection. When an object is present within the sensing range, the emitted infrared light is reflected back to the phototransistor, causing a change in its conductivity and resulting in the generation of an output signal.

Detailed Application Field Plans

The OPB820S3 finds extensive application in various fields, including but not limited to: - Industrial Automation - Robotics - Proximity Sensing Systems - Object Detection in Consumer Electronics

Detailed and Complete Alternative Models

Some alternative models to the OPB820S3 include: - TCRT5000 - GP2Y0A21YK

In conclusion, the OPB820S3 serves as a critical component in optoelectronic systems, offering reliable object detection capabilities with its compact design and high sensitivity. While it has certain limitations, its wide range of applications and availability of alternative models make it a versatile choice for numerous electronic and industrial applications.

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