OPB881P51Z Encyclopedia Entry

Product Overview

The OPB881P51Z is a photo interrupter sensor designed for use in various electronic and mechanical applications. This optoelectronic device belongs to the category of sensors and is commonly used for detecting the presence or absence of an object, as well as for position sensing and counting applications. The sensor is characterized by its compact size, high sensitivity, and reliable performance. It is typically available in a package that includes the sensor itself along with any necessary mounting hardware and connectors. The essence of the OPB881P51Z lies in its ability to provide accurate and consistent object detection, making it a valuable component in many automated systems. The standard packaging of the OPB881P51Z includes a quantity of one sensor per package.

Specifications

• Operating Voltage: 4.5V to 5.5V
• Output Type: Phototransistor
• Sensing Distance: 3mm
• Operating Temperature Range: -40°C to 85°C
• Package Type: Through Hole
• Dimensions: 7.0mm x 4.0mm x 2.5mm

Detailed Pin Configuration

The OPB881P51Z features a standard pin configuration with three pins: VCC (power supply), GND (ground), and OUT (output).

| Pin Name | Description | |----------|-------------------| | VCC | Power Supply (4.5V to 5.5V) | | GND | Ground | | OUT | Output Signal |

Functional Features

The OPB881P51Z operates based on the interruption of an infrared light beam between the emitter and detector components within the sensor. When an object obstructs the light path, the phototransistor output transitions from a high to low state, indicating the presence of the object. This functionality enables precise object detection and positioning in various applications.

Advantages and Disadvantages

Advantages

• High sensitivity and accuracy
• Compact size for easy integration
• Wide operating temperature range
• Reliable performance in harsh environments

Disadvantages

• Limited sensing distance
• Susceptible to ambient light interference

Working Principles

The working principle of the OPB881P51Z is based on the modulation of infrared light. The emitter component emits a beam of infrared light, which is then received by the detector component. When an object interrupts the light path, the detector's output signal changes, allowing for the detection of the object's presence or absence.

Detailed Application Field Plans

The OPB881P51Z finds extensive application in various fields, including: - Automated assembly lines - Robotics - Printers and copiers - Industrial machinery - Security systems - Counting and sorting equipment

Detailed and Complete Alternative Models

Some alternative models to the OPB881P51Z include: - H21A1 - TCST2103 - EE-SX671

In conclusion, the OPB881P51Z offers a reliable and compact solution for object detection and position sensing in diverse electronic and mechanical systems. Its high sensitivity and accuracy make it a preferred choice for applications requiring precise object detection and counting.

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