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SI7055-A20-IMR General Description

DescriptionThe Si7005 is a digital relative humidity and temperature sensor. This monolithic CMOS IC integrates temperature and humidity sensor elements, an analog-to-digital converter, signal processing, calibration data, and an I2C host interface. The patented use of industry-standard, low-K polymeric dielectrics for sensing humidity enables the construction of a low-power, monolithic CMOS sensor IC with low drift and hysteresis and excellent long term stability.Features■ Relative Humidity Sensor •± 4.5% RH (maximum @ 0–80% RH)■ Temperature Sensor •±0.5 ºC accuracy (typical) •±1 ºC accuracy (maximum @ 0 to 70 °C)■ 0 to 100% RH operating range■ –40 to +85 °C (GM) or 0 to +70 °C operating range (FM)■ Wide operating voltage range (2.1 to 3.6 V)■ Low Power Consumption •240 µA during RH conversion■ I2C host interface■ Integrated on-chip heater■ 4x4 mm QFN package■ Excellent long term stability■ Factory calibrated■ Optional factory-installed cover •Low-profile •Protection during reflow •Excludes liquids and particulates (hydrophobic/oleophobic)Applications■ Industrial HVAC/R■ Thermostats/humidistats■ Respiratory therapy■ White goods■ Micro-environments/data centers■ Automotive climate control and de-fogging■ Asset and goods tracking

Key Features

  • Relative Humidity Sensor
  • ± 4.5% RH (maximum @ 0–80% RH)
  • Temperature Sensor
  • ±0.5 ºC accuracy (typical)
  • ±1 ºC accuracy (maximum @ 0 to 70 °C)
  • 0 to 100% RH operating range
  • –40 to +85 °C (GM) or 0 to +70 °C operating range (FM)
  • Wide operating voltage range (2.1 to 3.6 V)
  • Low Power Consumption
  • 240 µA during RH conversion
  • I2C host interface
  • Integrated on-chip heater
  • 4x4 mm QFN package
  • Excellent long term stability
  • Factory calibrated
  • Optional factory-installed cover
  • Low-profile
  • Protection during reflow
  • Excludes liquids and particulates (hydrophobic/oleophobic)


Mfr Silicon Labs Series -
Package [ "Tape & Reel (TR)", "Cut Tape (CT)", "Digi-Reel®" ] Product Status Active
Sensor Type Digital, Local Sensing Temperature - Local -40°C ~ 125°C
Sensing Temperature - Remote - Output Type I²C
Voltage - Supply 1.9V ~ 3.6V Resolution 14 b
Features Standby Mode Accuracy - Highest (Lowest) ±0.5°C
Test Condition -40°C ~ 125°C Operating Temperature -40°C ~ 125°C
Mounting Type Surface Mount Package / Case 6-WDFN Exposed Pad
Supplier Device Package 6-DFN (3x3) Base Product Number SI7055
Manufacturer Silicon Laboratories Product Category Board Mount Temperature Sensors
RoHS Details Configuration Local
Accuracy +/- 0.5 C Supply Voltage - Min 1.9 V
Supply Voltage - Max 3.6 V Interface Type I2C
Minimum Operating Temperature - 40 C Maximum Operating Temperature + 125 C
Shutdown No Shutdown Mounting Style SMD/SMT
Brand Silicon Labs Moisture Sensitive Yes
Operating Supply Current 90 uA, 3.5 mA Product Temperature Sensors
Product Type Temperature Sensor ICs Factory Pack Quantity 2500
Subcategory Sensors Type Digital Temperature Sensor
Unit Weight 0.006896 oz


Shipping Method

Our products are mainly transported and delivered by DHL, FedEx, UPS and other logistics partners on site -- Available to 200+ countries.

Delivery Time

The delivery time is usually within 2-7 days, depending on the logistics provider and the area of delivery.

The following are the estimated delivery times of some logistics service providers.

  • DHL

  • Fedex

  • UPS

  • EMS

  • Registered Air Mail


We accept TT prepayment (bank transfer), paypal, credit cards, Western Union, Money Gram.

Checks and other instruments are not supported to pay for orders and customers are required to pay all possible fees, including sales tax,
customs fees, etc.

  • Wire Transfer

  • Paypal

  • Credit Card

  • Western Union

  • Money Gram


Our policies and procedures are designed to ensure compliance with various quality specifications and to quickly resolve quality-related issues.

We promise to provide 365 days quality assurance service for all our products.

If you have any dissatisfaction with the quality of the product you received, you can contact us for a refund or exchange, as long as the product is kept in its original condition.


AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.
  • ESD


  • Tape and Reel

    Tape and Reel

  • Cut Tape

    Cut Tape

  • Tube or Tray

    Tube or Tray


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Buying Guide

  • What is the lifespan of SI7055-A20-IMR?

    The lifespan of SI7055-A20-IMR depends on various factors such as the quality of materials used, operating conditions, and the manufacturer's recommended usage time. The datasheet provided by the manufacturer specifies the expected lifespan of the product.

  • Where can I find the full specification of SI7055-A20-IMR?

    You can find it with PDF Datasheet for SI7055-A20-IMR on this page. If it is not available, you can contact Avaq at [email protected] to inquire about the Datasheet for this part.

  • How to check the quality of SI7055-A20-IMR?

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  • Can I purchase samples for testing?

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