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Sensirion STS4L – An Affordable Temperature Sensor for Your Application

The STS4L temperature sensor is the latest addition to the STS4x family. It offers a 20% cost reduction compared to the STS40-AD1B sensor, with only a slight compromise in accuracy. Its low power consumption of 0.4 µA and wide supply voltage range of 1.08 to 3.6 V make it an ideal choice for battery-powered applications. Try this temperature sensor with the Sensirion development kit from our selection. (Read time: 2 minutes)

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The Sensirion STS4x Temperature Sensor Family 

This family features the STS4L-AD1B-R3 sensor and the STS40 series. As of now, the STS41 series and its automotive version, the STS41A, are still in development. The STS4L, STS40, and STS41 sensors all share the same datasheet, differing only in accuracy levels.

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Features of the STS4x series temperature sensors

  • Measurement range -40 to 125 °C
  • Three measurement modes
    • High precision (high repeatability, 3 sigma = 0.04 °C)
    • Medium precision (medium repeatability, 3 sigma = 0.07 °C)
    • Low precision (low repeatability, 3 sigma = 0.1 °C)
  • Three I2C addresses: STS4x-A (0x44), STS4x-B (0x45), STS4x-C (0x46)
  • Communication speed up to 1 MHz
  • Supply voltage 1.0 to 3.6 V
  • Average supply current at 3.3 V and one measurement per second
    •  2.2 µA (high repeatability)
    •  1.2 µA (medium repeatability)
    •  0.4 µA (low repeatability)

Development support

Sensirion offers the SEK-STS40-CD1B development kit, which includes three STS40-CD1B sensors on a flexible PCB, a SEK-SensorBridge, and ControlCenter software. Source codes for a generic driver and an Arduino library are available on Sensirion’s GitHub.

Applications  

The Sensirion STS4x series temperature sensors are ideal for air quality monitors and thermostats. They also provide a great alternative to PTC thermistors, including the popular but discontinued NXP KTY81 and KTY82 series.

We’ve added the Sensirion STS4L-AD1B-R3 temperature sensor to our inventory, ensuring it’s readily available for your temperature measurement and air quality control applications. Other sensors from the STS4x series can be ordered on request.

STS4L-AD1B-R3
STS4L-AD1B-R3
Temperature sensors
Temperature Sensor I2C DFN4
in stock 10000 pcs
Ord.number: 412930
SENSIRION
5 pcs+
0,3820 €
50 pcs+
0,3740 €
100 pcs+
0,3000 €
250 pcs+
0,2900 €
500 pcs+
0,2530 €
1000 pcs+
0,2350 €
Bulk discounts
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Looking for more information about Sensirion products or need technical advice on choosing the right sensor? Have any other questions or requests? Don’t hesitate to reach out to us. We’re always happy to assist.

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Try a sample for your project 

Need to test a component during development? Feel free to reach out to us, and we’d be happy to provide a sample for your project. We review each request individually, so please include a brief description of your project in the form below.

Note: Samples are provided for development projects only, not for individual personal use. 

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