QT111-D

Product Overview

• Category: Electronic Component
• Use: Proximity Sensor
• Characteristics: High sensitivity, compact size, low power consumption
• Package: Surface Mount Device (SMD)
• Essence: Infrared proximity sensor with integrated circuitry
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Operating Voltage: 2.7V to 5.5V
• Detection Range: Up to 20cm
• Output Type: Digital (High/Low)
• Current Consumption: 1.5mA (typical)
• Response Time: 10ms (typical)
• Operating Temperature: -40°C to +85°C

Detailed Pin Configuration

The QT111-D has a total of 6 pins:

1. VCC: Power supply input
2. GND: Ground connection
3. OUT: Digital output signal
4. NC: Not connected
5. SDA: Serial data input/output for configuration
6. SCL: Serial clock input for configuration

Functional Features

• Reliable proximity detection using infrared technology
• Adjustable detection range through configuration settings
• Low power consumption for energy-efficient applications
• Compact size allows for easy integration into various devices
• Digital output simplifies interfacing with microcontrollers

Advantages

• High sensitivity enables accurate proximity detection
• Versatile application possibilities due to adjustable range
• Small form factor facilitates space-constrained designs
• Low power consumption prolongs battery life in portable devices
• Easy integration with microcontrollers simplifies system design

Disadvantages

• Limited detection range compared to some other sensors
• Susceptible to interference from ambient infrared sources
• Requires additional configuration for optimal performance
• Relatively higher cost compared to some alternative sensors

Working Principles

The QT111-D operates based on the principle of infrared reflection. It emits infrared light and measures the intensity of the reflected light to detect the presence or absence of an object within its detection range. The sensor's integrated circuitry processes the received signal and provides a digital output indicating the proximity status.

Detailed Application Field Plans

The QT111-D finds applications in various fields, including:

1. Proximity sensing in consumer electronics (e.g., smartphones, tablets)
2. Object detection in robotics and automation systems
3. Touchless user interfaces for appliances and devices
4. Presence detection for security systems and access control
5. Proximity-based gesture recognition in gaming consoles

Alternative Models

For users seeking alternatives to the QT111-D, the following models can be considered:

1. QT112-E: Similar functionality with extended detection range
2. QT113-F: Enhanced sensitivity for demanding applications
3. QT114-G: Integrated touch sensing capability in addition to proximity detection
4. QT115-H: Higher operating voltage range for specific requirements

These alternative models offer different features and specifications to cater to diverse application needs.

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