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SHT40-AD1B-R3 - Sensirion

Description: Humidity/Temperature Sensor Digital Serial (I2C) T/R

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SHT40-AD1B-R3 - Sensirion - PCB symbol
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PCB Footprints
SHT40-AD1B-R3 - Sensirion PCB footprint - Other - Other - SHT40-AD1B-R3-3
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SHT40-AD1B-R3 - Sensirion - 3D model - Other - SHT40-AD1B-R3-3
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SHT40-AD1B-R3 Details

  • Manufacturer Part Number:

    SHT40-AD1B-R3

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    DFN-4

  • Country Of Origin:

    Switzerland

  • ECCN Code:

    EAR99

  • Manufacturer:

    Sensirion

  • Accuracy-Max (%):

    1.8%

  • Body Height:

    0.54 mm

  • Body Length or Diameter:

    1.5 mm

  • Mounting Feature:

    SURFACE MOUNT

  • Number of Terminals:

    4

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output:

    DIGITAL

  • Output Type:

    DIGITAL

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Equivalence Code:

    SOLCC4,.06,32

  • Package Shape/Style:

    SQUARE

  • Sensors/Transducers Type:

    HUMIDITY AND TEMPERATURE SENSOR

  • Supply Voltage-Max:

    3.6 V

  • Supply Voltage-Min:

    1.08 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

SHT40-AD1B-R3 Frequently Asked Questions (FAQs)

  • Sensirion recommends a reflow soldering profile with a peak temperature of 260°C, a dwell time above 220°C of 30-60 seconds, and a total process time of 3-5 minutes.
  • The SHT40-AD1B-R3 comes with a unique humidity calibration data stored in its OTP memory. This data should be read and stored during manufacturing, and then used to compensate for humidity measurements.
  • Sensirion provides a recommended PCB layout and land pattern in the datasheet, which should be followed to ensure proper soldering and thermal performance.
  • The dew point temperature can be calculated using the temperature and humidity measurements from the SHT40-AD1B-R3, along with the psychrometric constant. Sensirion provides an application note with the calculation formula and example code.
  • The SHT40-AD1B-R3 can be connected to a microcontroller using the I2C interface. Sensirion recommends using a 4.7 kΩ pull-up resistor on the SCL line and a 2.2 kΩ pull-up resistor on the SDA line.

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SHT40-AD1B-R3 Overview

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