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STS21 The Sensirion AG STS21 is a digital temperature sensor IC featuring an I2C interface and high accuracy. It operates within a wide temperature range and is suitable for various applications.
Mfr Part #:

STS21

Available from 2 distributors
Mfr Name: Sensirion AG
Sensirion AG
The Sensirion AG STS21 is a digital temperature sensor IC featuring an I2C interface and high accuracy. It operates within a wide temperature range and is suitable for various applications.
✓ Total Stock: 8,236 pcs
$ Price Range: $1.01

STS21 Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
Non-Authorised Inventory information
8,100 pcs
On Request
8100 pcs On Request 1 On Request On Request 18+ On Request On Request
Smaxon Electronics ✓
Non-Authorised Inventory information
136 pcs
On Request
136 pcs On Request 1 On Request On Request 17+ On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

STS21 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Accuracy
Features
Mounting Type
Operating Temperature
Output Type
Resolution
Sensing Temperature
Sensor Type
Supplier Device Package
Test Condition
Voltage
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STS21 Description

Short technical summary and product information.

The Sensirion AG STS21 is a highly accurate digital temperature sensor IC designed for precise temperature monitoring. It features a calibrated, linearized signal output via an I2C interface, making integration into digital systems straightforward. The sensor offers a wide operating temperature range from -40°C to 125°C with an impressive accuracy of ±0.2°C at 25°C.

 

Embedded in a compact 3x3mm 6-DFN (Dual Flat No leads) package with an exposed pad, the STS21 is designed for surface mount applications and is reflow solderable. Its low power consumption and excellent long-term stability make it ideal for energy-efficient designs. The sensor also includes features like sleep mode for further power savings and a 14-bit resolution for detailed temperature readings.

 

This sensor is built using Sensirion's CMOSens® technology, ensuring superior performance and reliability. It is suitable for a broad range of applications including HVAC, medical technology, consumer electronics, and industrial monitoring where accurate and stable temperature sensing is critical.

STS21 Quick Information

Product Type: Temperature Sensor
Canonical Name: STS21 Digital Temperature Sensor IC
Subcategory: Digital

STS21 Compliance

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

STS21 Estimated Pricing

Qty Low High
1+ $1.01 $1.01

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

STS21 Features

  • Digital output via I2C interface.
  • High accuracy of ±0.2°C.
  • Wide operating temperature range.
  • Compact 6-DFN surface mount package.
  • Low power consumption with sleep mode.

STS21 Applications

  • Ideal for HVAC system control.
  • Suitable for medical device monitoring.
  • Used in consumer electronics applications.
  • Applicable for industrial process control.
  • Enables energy-efficient designs.

STS21 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating temperature range of the STS21 sensor?

The STS21 sensor operates from -40°C to 125°C.

What is the accuracy of the STS21 temperature sensor?

The STS21 temperature sensor has an accuracy of ±0.2°C at 25°C.

What type of output interface does the STS21 sensor use?

The STS21 sensor uses an I2C digital output interface.

What is the voltage range for the STS21 sensor?

The STS21 sensor operates within a voltage range of 2.1V to 3.6V.

What package type is the STS21 sensor supplied in?

The STS21 sensor is supplied in a 6-DFN (3x3) package suitable for surface mounting.

Does the STS21 sensor have a sleep mode?

Yes, the STS21 sensor features a sleep mode for low power consumption.

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