OPB821 Product Overview

Introduction

The OPB821 is a versatile product that belongs to the category of optical sensors. This entry provides a comprehensive overview of the OPB821, 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: The OPB821 is used for detecting the presence or absence of an object by utilizing an infrared light-emitting diode (LED) and a phototransistor.
• Characteristics: It is known for its high sensitivity, reliability, and compact design.
• Package: The OPB821 is typically available in a small, durable package suitable for various applications.
• Essence: The essence of the OPB821 lies in its ability to provide accurate and consistent object detection.
• Packaging/Quantity: The product is commonly packaged individually or in sets, depending on the manufacturer's specifications.

Specifications

The OPB821 sensor has the following specifications: - Operating Voltage: 4.5V to 5.5V - Output Type: Phototransistor - Sensing Distance: Up to 0.125 inches (3.18mm) - Operating Temperature Range: -40°C to 85°C - Package Type: Through Hole - Mounting Type: Through Hole - Lead-Free Status: Lead-Free

Detailed Pin Configuration

The OPB821 sensor has a standard pin configuration as follows: 1. VCC (Power Supply) 2. GND (Ground) 3. Output

Functional Features

The OPB821 offers the following functional features: - High Sensitivity: The sensor can detect objects with high precision and accuracy. - Compact Design: Its small form factor makes it suitable for applications with space constraints. - Reliable Performance: The OPB821 delivers consistent performance across varying environmental conditions.

Advantages and Disadvantages

Advantages

• Accurate Object Detection
• Compact Size
• Consistent Performance

Disadvantages

• Limited Sensing Distance
• Susceptible to Ambient Light Interference

Working Principles

The OPB821 operates based on the principle of infrared light reflection. When an object is within the sensing distance, the infrared LED emits light, which is then reflected back to the phototransistor. The presence or absence of the reflected light is detected to determine the object's status.

Detailed Application Field Plans

The OPB821 sensor finds extensive use in various applications, including but not limited to: - Object Detection in Automated Machinery - Robotics and Automation Systems - Printers and Copiers - Industrial Automation - Security Systems

Detailed and Complete Alternative Models

For users seeking alternative models to the OPB821, the following options are available: 1. OPB820 - Similar functionality with a different form factor 2. OPB822 - Enhanced sensing distance and ambient light rejection capabilities 3. OPB823 - Advanced features for specialized industrial applications

In conclusion, the OPB821 optical sensor offers reliable object detection capabilities in a compact package, making it suitable for diverse applications across industries.

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