Temperature and Humidity Sensor with PTFE membrane - HTU21DF

• DFN type package
• Relative Humidity and Temperature Digital Output, I2C interface
• Fully calibrated
• Lead free sensor, reflow solderable
• Low power consumption
• Fast response time and very low temperature coefficient
• with PTFE membrane

  • Model Number: HTU21DF
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  • Temperature and Humidity Sensor with PTFE membrane
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Product Specification

Temperature and Humidity Sensor HTU21DF with PTFE membrane

Temperature and Humidity Sensor HTU21DF DESCRIPTION
HTU21DF, the new humidity and temperature sensor of MEAS is about to set new standards in terms of size and intelligence: Embedded in a reflow solderable Dual Flat No leads (DFN) package of 3 x 3mm foot print and 1mm height it provides calibrated, linearized signals in digital, I²C format.

HTU21DF sensors are dedicated humidity and temperature plug and play transducers for OEM applications where reliable and accurate measurements are needed. Direct interface with a micro-controller is made possible with the module humidity and temperature digital outputs. HTU21DF sensors are low power consumption designed for high volume and cost sensitive applications with tight space constraints.
Every sensor is individually calibrated and tested. Lot identification is printed on the sensor and an electronic identification code is stored on the chip – which can be read out by command.

Furthermore, the resolution of HTU21DF sensor can be changed by command (8/12bit up to 12/14bit for RH/T), low battery can be detected and a checksum improves communication reliability.

With made improvements and the miniaturization of the sensor the performance-to-price ratio has been improved – and eventually, any device should benefit from the cutting edge energy saving operation mode.

Temperature and Humidity Sensor HTU21DF Parameters:
• storage temperature: -40 to 125ºC
• supply voltage: 3.8Vdc
• Humidity Operating Range: 1-100%RH
• Temperature operating range: -40 to 125ºC
• VDD to GND: -0.3 to 3.6V
• Digital I/O pins (DATA/SCK) to VDD: -0.3 to VDD+0.3 V
• Input current on any pin: -10 to +10 mA

Temperature and Humidity Sensor HTU21DF Features:
• DFN type package  
• Relative Humidity and Temperature Digital Output, I2C interface 
• Fully calibrated 
• Lead free sensor, reflow solderable
• Low power consumption 
• Fast response time and very low temperature coefficient
• with PTFE membrane

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