SHT21 The Sensirion AG SHT21 is a humidity and temperature sensor IC with an I2C interface. It operates from 2.1V to 3.6V and has an operating temperature range of -40°C to 125°C.
Mfr Part #:

SHT21

Available from 3 distributors
Mfr Name: Sensirion AG
Sensirion AG
The Sensirion AG SHT21 is a humidity and temperature sensor IC with an I2C interface. It operates from 2.1V to 3.6V and has an operating temperature range of -40°C to 125°C.
Total Stock: 4,222 pcs
$ Price Range: $1.69

SHT21 Available from 3 distributors

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
2,537 pcs
2537 pcs On Request 1 On Request On Request 21+ On Request On Request
Non-Authorised Inventory information
1,586 pcs
1586 pcs On Request 1 On Request On Request 21+ On Request On Request
Non-Authorised Inventory information
99 pcs
99 pcs On Request 1 On Request On Request On Request On Request On Request

SHT21 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Accuracy
Humidity Range
Mounting Type
Operating Temperature
Output
Output Type
Resolution
Response Time
Sensor Type
Supplier Device Package
Supplier Package
Tape & Reel
Voltage

SHT21 Description

Short technical summary and product information.

The Sensirion AG SHT21 is a fully calibrated, digital humidity and temperature sensor IC. It features an I2C interface and operates within a voltage range of 2.1V to 3.6V, with an extended operating temperature range from -40°C to 125°C.

 

This sensor is designed for surface mounting and comes in a 6-DFN (3x3) package. It offers a humidity range of 0% to 100% RH with an accuracy of ±2% RH and a response time of 8 seconds. The digital output provides 12-bit resolution for both humidity and temperature measurements.

 

The sensor chip utilizes a CMOSens® chip with a capacitive relative humidity sensor and a band gap temperature sensor. The housing consists of a plated copper lead-frame and green epoxy-based mold compound. The device is RoHS and WEEE compliant.

 

Applications for this sensor include HVAC systems, air conditioners, consumer electronics, and indoor air quality monitoring.

SHT21 Quick Information

Product Type: Humidity and Temperature Sensor
Series: SHT2x
Canonical Name: SHT21 Humidity and Temperature Sensor IC
Subcategory: Humidity, Moisture Sensors

SHT21 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

SHT21 Estimated Pricing

Qty Low High
1+ $1.69 $1.69

Estimated market price range - modelled values for guidance only, not live distributor offers.

SHT21 Features

  • Digital humidity and temperature sensor IC
  • I2C interface for digital communication
  • Wide operating voltage from 2.1V to 3.6V
  • Extended temperature range of -40°C to 125°C
  • Surface mountable 6-DFN package

SHT21 Applications

  • Ideal for HVAC and air conditioning
  • Suitable for consumer electronics
  • Used for indoor air quality monitoring
  • Applicable in medical technology
  • Supports IoT and smart infrastructure

SHT21 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating temperature range of the SHT21?

-40°C to 125°C.

What is the supply voltage range for the SHT21?

2.1V to 3.6V.

What is the output type of the SHT21?

I2C.

What is the humidity measurement range of the SHT21?

0% to 100% RH.

What is the accuracy of the SHT21 humidity measurement?

±2% RH.

What package types are available for the SHT21?

6-DFN and 6-TDFN Exposed Pad.

Is the SHT21 RoHS compliant?

Yes, it is RoHS3 compliant.

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