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HIH-4021-002
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HIH-4021-002: Product Overview and Specifications

Introduction

HIH-4021-002 is a humidity sensor designed for various applications. This entry provides an overview of the product, including its category, use, characteristics, packaging, specifications, pin configuration, functional features, advantages, disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

  • Category: Humidity Sensor
  • Use: Measurement of relative humidity in various environments
  • Characteristics: High accuracy, low power consumption, digital output
  • Package: Surface-mount device (SMD)
  • Essence: Accurate and reliable humidity sensing
  • Packaging/Quantity: Typically available in reels of 250 or 500 units

Specifications

  • Operating Voltage: 2.7V to 5.5V
  • Humidity Range: 0% to 100% RH
  • Temperature Range: -40°C to 85°C
  • Accuracy: ±2% RH
  • Output Type: I2C digital output
  • Dimensions: 3mm x 3mm x 1.1mm

Detailed Pin Configuration

The HIH-4021-002 sensor has a standard 4-pin configuration: 1. VDD (Power supply) 2. GND (Ground) 3. SDA (I2C data line) 4. SCL (I2C clock line)

Functional Features

  • Digital output for easy interfacing with microcontrollers
  • Low power consumption for battery-operated devices
  • High accuracy for precise humidity measurement
  • Integrated temperature sensor for compensation

Advantages and Disadvantages

Advantages

  • High accuracy
  • Low power consumption
  • Small form factor
  • Easy integration with microcontrollers

Disadvantages

  • Limited operating temperature range
  • Requires external pull-up resistors for I2C communication

Working Principles

The HIH-4021-002 utilizes a capacitive sensing element to measure relative humidity. The integrated temperature sensor compensates for temperature variations, providing accurate humidity readings across a wide temperature range.

Detailed Application Field Plans

The HIH-4021-002 is suitable for various applications, including: - HVAC systems - Weather stations - Industrial process control - Medical equipment - Automotive climate control

Detailed and Complete Alternative Models

Some alternative models to consider include: - HIH-4030-004: Extended temperature range - SHT31: Higher accuracy and wider temperature range - DHT22: Cost-effective option for basic applications

In conclusion, the HIH-4021-002 humidity sensor offers high accuracy and low power consumption, making it suitable for diverse humidity measurement applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací HIH-4021-002 v technických řešeních

  1. What is HIH-4021-002?

    • HIH-4021-002 is a humidity sensor designed for use in various technical solutions to measure relative humidity.

  2. How does HIH-4021-002 work?

    • The sensor operates on the principle of capacitive sensing, where changes in humidity cause a change in the capacitance of the sensor, which is then converted into a digital output.

  3. What is the operating voltage range of HIH-4021-002?

    • The operating voltage range is typically 4-5.8 volts DC.

  4. What is the accuracy of HIH-4021-002?

    • The accuracy of the sensor is typically within +/- 3% relative humidity.

  5. Can HIH-4021-002 be used in outdoor applications?

    • Yes, the sensor is designed to be used in outdoor environments, but proper protection from direct exposure to water or extreme conditions is recommended.

  6. Is calibration required for HIH-4021-002?

    • The sensor comes factory-calibrated, but periodic recalibration may be necessary depending on the application and environmental conditions.

  7. What is the response time of HIH-4021-002?

    • The response time is typically less than 10 seconds for a 63% step change in humidity.

  8. Can HIH-4021-002 be interfaced with microcontrollers?

    • Yes, the sensor can be easily interfaced with microcontrollers using its digital output.

  9. What is the temperature range for operation of HIH-4021-002?

    • The sensor is designed to operate within a temperature range of -40°C to 85°C.

  10. Are there any special considerations for mounting HIH-4021-002?

    • Mounting the sensor in a location that provides good air circulation and minimal exposure to contaminants such as dust or chemicals is recommended for accurate readings.