OPB845A Optical Sensor

Product Overview

The OPB845A optical sensor belongs to the category of reflective object sensors. It is commonly used for detecting the presence or absence of objects, as well as for counting and positioning applications. The sensor is characterized by its compact size, high sensitivity, and reliable performance. It is typically packaged in a small, durable housing and is available in various packaging quantities to suit different application requirements.

Specifications

• Operating Voltage: 5V
• Output Type: Phototransistor
• Sensing Distance: 0.2mm to 15mm
• Package Type: Through Hole
• Package Quantity: 50 pieces per pack

Detailed Pin Configuration

The OPB845A sensor has a standard 4-pin configuration: 1. VCC (Power supply) 2. GND (Ground) 3. Output 4. N/C (Not connected)

Functional Features

• High sensitivity to detect objects within the specified range
• Fast response time for real-time object detection
• Compact design for easy integration into various systems
• Reliable performance in diverse environmental conditions

Advantages and Disadvantages

Advantages

• Small form factor
• Versatile applications
• Reliable performance
• Easy to integrate

Disadvantages

• Limited sensing distance
• Susceptible to ambient light interference

Working Principles

The OPB845A operates based on the principle of reflection. When an object enters the sensor's detection range, it reflects the emitted light back to the phototransistor, causing a change in the output signal. This change is then processed to determine the presence or absence of the object.

Detailed Application Field Plans

The OPB845A sensor finds extensive use in various industries, including: - Industrial automation for object detection and counting - Robotics for precise positioning and obstacle avoidance - Automotive for proximity sensing and speed detection - Consumer electronics for touchless control and gesture recognition

Detailed and Complete Alternative Models

1. OPB9000 - Offers longer sensing distance and immunity to ambient light
2. TCRT5000 - Provides a cost-effective alternative with similar functionality
3. QRE1113 - Suitable for applications requiring high-speed object detection

In conclusion, the OPB845A optical sensor is a versatile and reliable component that caters to diverse object detection needs across multiple industries. Its compact design, high sensitivity, and fast response time make it a preferred choice for various applications.

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