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STS32-DIS-2.5KS

SENSTS32-DIS-2.5KS

Sensirion AG
Temperature Sensor Digital, Local -40°C ~ 125°C 0.01°C 8-DFN (2.5x2.5)
9,965 in stock

Overview

The STS32-DIS-2.5KS is a high-accuracy digital temperature sensor designed for applications requiring strict NIST traceability and ISO 17025 certification. It features a 16-bit resolution output over I2C and is pre-calibrated at three temperature points to ensure a typical accuracy of +/-0.4 degrees Celsius. Housed in a compact 2.5mm x 2.5mm DFN package, it offers extremely low power consumption with a typical sleep current of 0.2 uA.

Why Choose This Part

The sensor stands out by providing a unique serial number and a sensor-specific calibration certificate, simplifying compliance for regulated industries. Its low long-term drift of less than 0.01 degrees Celsius per year reduces the need for frequent field recalibration. Additionally, the inclusion of an internal heater allows for self-test functionality and helps clear condensation in humid environments.

Applications

Cold Chain Logistics
Utilizing ISO 17025 certification and NIST traceability to monitor temperature-sensitive pharmaceuticals and food products during transport.
Industrial Process Control
Integrating into automation systems where low annual drift and high-resolution digital feedback are critical for long-term stability.
Battery Powered Data Loggers
Leveraging the 0.2 uA sleep current and 2.15V to 5.5V supply range for extended operation in remote monitoring hardware.
Medical Instrumentation
Providing reliable, calibrated thermal monitoring for laboratory equipment and diagnostic devices.

Key Specifications

Resolution 0.01degC
Output Type I2C
Sensor Type Digital, Local
Mounting Type Surface Mount
Package / Case 8-VFDFN Exposed Pad
Test Condition 0degC ~ 65degC
Voltage - Supply 2.15V ~ 5.5V
Operating Temperature -40degC ~ 125degC
Supplier Device Package 8-DFN (2.5x2.5)
Accuracy - Highest (Lowest) +/-0.4degC
Sensing Temperature - Local -40degC ~ 125degC

Getting Started

To interface with the STS32, connect the I2C SDA and SCL lines to a microcontroller and use the 0x44 or 0x45 hardware-selectable addresses. Engineers can implement the 8-bit CRC checksum to ensure data integrity over the communication bus. Evaluation can be performed using Sensirion SEK-SensorBridge along with the SEK-STS3x evaluation kit.

Also Consider

SHT31-DIS-B SENSensirion AG - Consider this if both humidity and temperature sensing are required in the same footprint.
TMP117 TITexas Instruments - Offers higher absolute accuracy of +/-0.1 degrees Celsius for ultra-precise clinical or scientific applications.
MCP9808 MCHPMicrochip Technology - A cost-effective digital temperature sensor with a similar I2C interface for less demanding accuracy requirements.