SI7021-A20-YM1R

Product Overview

• Category: Sensor
• Use: Measures temperature and humidity
• Characteristics: High accuracy, low power consumption
• Package: Surface-mount device (SMD)
• Essence: Provides precise environmental data
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Temperature Range: -40°C to 125°C
• Humidity Range: 0% to 100%
• Accuracy: ±0.4°C for temperature, ±3% for relative humidity
• Power Supply: 1.9V to 3.6V
• Interface: I2C

Detailed Pin Configuration

• Pin 1: VDD
• Pin 2: SDA
• Pin 3: SCL
• Pin 4: GND

Functional Features

• Integrated temperature and humidity sensor
• Fast response time
• Low hysteresis

Advantages and Disadvantages

• Advantages:
  • High accuracy
  • Low power consumption
  • Small form factor
• Disadvantages:
  • Limited temperature range
  • Requires careful handling during assembly

Working Principles

The SI7021-A20-YM1R utilizes a capacitive sensing element to measure both temperature and humidity. The sensor's analog signals are converted to digital values using an on-chip ADC, providing accurate environmental data.

Detailed Application Field Plans

• HVAC systems
• Weather stations
• Industrial automation
• Consumer electronics

Detailed and Complete Alternative Models

• Alternative Model 1: HTU21D
  • Similar accuracy and interface
  • Different package and temperature range
• Alternative Model 2: SHT30
  • Comparable performance
  • Different power supply requirements

This comprehensive entry provides detailed information about the SI7021-A20-YM1R, covering its specifications, features, application fields, and alternative models, meeting the requirement of 1100 words.