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                      1. Home
                      2. Sensors & Transducers
                      3. Sensors
                      4. Humidity Sensors
                      5. Humidity & Temperature Sensor ICs
                      Print Page

                      SI7021-A20-IM

                      Humidity/Temperature Sensor, 0% to 100% RH/-40°C to 125°C Range, I2C, Digital, 1.9V to 3.6V, DFN-6

                      SILICON LABS SI7021-A20-IM
                      Image is for illustrative purposes only. Please refer to product description.
                      ManufacturerSILICON LABS
                      Manufacturer Part NoSI7021-A20-IM
                      Order Code2473672
                      Product RangeSi7021
                      Technical Datasheet

                      Data Sheet

                      See all Technical Docs
                      No Longer Manufactured

                      Product Information

                      ManufacturerSILICON LABS
                      Manufacturer Part NoSI7021-A20-IM
                      Order Code2473672
                      Product RangeSi7021
                      Technical Datasheet

                      Data Sheet

                      Humidity Range0% to 100% Relative Humidity
                      Humidity Accuracy± 2% RH
                      Temperature Accuracy± 0.3°C
                      RH Response Time18s
                      Temperature Response Time17s
                      Sensor Interface TypeI2C
                      Sensor Output TypeDigital
                      Sensor Case StyleDFN
                      No. of Pins6Pins
                      Operating Temperature Min-40°C
                      Operating Temperature Max125°C
                      Supply Voltage Min1.9V
                      Supply Voltage Max3.6V
                      Product RangeSi7021
                      MSLMSL 2 - 1 year
                      SVHCNo SVHC (17-Dec-2014)

                      Alternatives for SI7021-A20-IM

                      3 Products Found

                      Product Overview

                      The SI7021-A20-IM is a monolithic CMOS Humidity and Temperature Sensor with an analogue-to-digital converter, signal processing, calibration data and I²C interface. The patented use of industry-standard, low-K polymeric dielectrics for sensing humidity enables the construction of low-power, monolithic CMOS Sensor ICs with low drift and hysteresis and excellent long term stability. The humidity and temperature sensors are factory-calibrated and the calibration data is stored in the on-chip non-volatile memory. This ensures that the sensors are fully interchangeable, with no recalibration or software changes required.

                      • Precision relative humidity sensor - ±3% RH (maximum) at 0-80% RH
                      • 0 to 100% RH Operating range
                      • Low power consumption - 150µA Active current
                      • Low power consumption - 60nA standby current
                      • Integrated on-chip heater

                      Applications

                      Sensing & Instrumentation, HVAC, Consumer Electronics, Medical, Automotive, Industrial, Thermal Management

                      Warnings

                      Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

                      Technical Specifications

                      Humidity Range

                      0% to 100% Relative Humidity

                      Temperature Accuracy

                      ± 0.3°C

                      Temperature Response Time

                      17s

                      Sensor Output Type

                      Digital

                      No. of Pins

                      6Pins

                      Operating Temperature Max

                      125°C

                      Supply Voltage Max

                      3.6V

                      MSL

                      MSL 2 - 1 year

                      Humidity Accuracy

                      ± 2% RH

                      RH Response Time

                      18s

                      Sensor Interface Type

                      I2C

                      Sensor Case Style

                      DFN

                      Operating Temperature Min

                      -40°C

                      Supply Voltage Min

                      1.9V

                      Product Range

                      Si7021

                      SVHC

                      No SVHC (17-Dec-2014)

                      Technical Docs (3)

                      Technical Data Sheet EN

                      EOL Notices EN

                      Product Change Notice EN

                      Legislation and Environmental

                      Country of Origin:
                      Country in which last significant manufacturing process was carried outCountry of Origin:
                      Philippines
                      Country in which last significant manufacturing process was carried out
                      Tariff No:90329000
                      US ECCN:EAR99
                      EU ECCN:NLR
                      RoHS Compliant:Yes

                      RoHS

                      RoHS Phthalates Compliant:Yes

                      RoHS

                      SVHC:No SVHC (17-Dec-2014)
                      Download Product Compliance Certificate

                      Product Compliance Certificate

                      Weight (kg):.000024
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