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Sensirion Digital Output Temperature & Humidity Sensor Surface Mount I2C 1 %RH DFN SHT45-AD1B-R2

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Sensirion Digital Output Temperature & Humidity Sensor Surface Mount I2C 1 %RH DFN SHT45-AD1B-R2

Name: Sensirion Digital Output Temperature & Humidity Sensor Surface Mount I2C 1 %RH DFN SHT45-AD1B-R2
Brand: Sensirion
SKU: 178907
Price: 7.09 USD
Availability: InStock

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Category Temperature & Humidity Sensor Brand Sensirion Condition New

Specifications

Country of Origin	Switzerland
Accuracy	1 %RH
Brand	Sensirion
Height	500μm
Length	1.5mm
Model	SHT45-AD1B-R2
RH Range	0 to 100 %
Width	1.5mm
Mount Type	Surface
Output type	Digital
Maximum Operating Temperature	125°C
Package Type	DFN
Minimum Operating Temperature	-40°C
Interface Type	I2C
Standards/Approvals	RoHS/WEEE
Maximum Supply Voltage	3.6V
Minimum Supply Voltage	1.08V

Key Features

Provides digital output with I2C interface for easy system integration.
Surface mount package enables compact PCB designs.
Offers ±1.0 %RH humidity accuracy and ±0.1 °C temperature accuracy.
Operates from -40 °C to 125 °C temperature range.
Measures 0 to 100 % relative humidity for comprehensive monitoring.
Includes internal heater with three selectable power levels for demanding conditions.
Compact DFN package of 1.5mm x 1.5mm footprint with 500μm height.
Complies with RoHS and WEEE environmental standards.

Product Description

The Sensirion SHT45-AD1B-R2 is a high-precision digital output temperature and humidity sensor designed for surface mount applications. It features an I2C interface allowing multiple preconfigured addresses and ultra-low power consumption. The sensor is ideal for industrial, laboratory, HVAC, and commercial environmental monitoring systems requiring accurate relative humidity and temperature measurements.

The device operates over a wide temperature range from -40 °C to 125 °C and measures relative humidity across the full span of 0 to 100 %RH. It offers ±1.0 %RH humidity accuracy and ±0.1 °C temperature accuracy, making it suitable for applications demanding precise environmental control and monitoring.

An integrated power-trimmed internal heater with selectable heating levels enables sensor operation even in condensing and challenging environments. The sensor is housed in a low-profile 1.5mm by 1.5mm dual-flat-no leads (DFN) package with a height of 500μm, making it suitable for compact PCB layouts and surface mount technology (SMT) processing. It optionally includes a patented PTFE membrane or removable protection cap, enhancing durability against contaminants.

The SHT45-AD1B-R2 sensor complies with RoHS and WEEE standards, ensuring it meets environmental regulations and reliability requirements. Its Swiss origin underlines the quality and maturity of technology from a global market leader in sensing solutions.

The sensor delivers digital temperature and humidity data via I2C interface. Measures relative humidity with ±1.0 %RH accuracy and temperature with ±0.1 °C accuracy. Operates in ambient conditions from -40 °C to 125 °C and 0 to 100 % relative humidity.

Incorporates internal heater with three selectable power levels for operation in harsh conditions. Packaged in a compact 1.5 x 1.5 mm DFN surface mount package with 500μm height. Designed for use in industrial, laboratory, HVAC, and commercial sensor applications.

Fully functional in condensing environments with optional membrane or protection cap. Complies with RoHS and WEEE environmental directives. Swiss manufacture ensuring quality and performance. Explore our selection of high-precision temperature and humidity sensors at EnvMart for your industrial and laboratory measurement needs.

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