SHT40I-AD1B-R3

Sensirion

Factory calibration、Built-in heater DFN-4(1.5x1.5) Temperature and Humidity Sensor ROHS

Extended

sensirion/SHT40I-AD1B-R3

Category: Temperature And Humidity Sensor
Package: DFN-4(1.5x1.5)
Pins: 5

Overview

The SHT40I-AD1B-R3 is a temperature And Humidity Sensor made by Sensirion in a DFN-4(1.5x1.5) package with 4 pins. Factory calibration、Built-in heater DFN-4(1.5x1.5) Temperature and Humidity Sensor ROHS.

PCBKit's library has its KiCad symbol (Sensor_Humidity:SHT4x, from KiCad's library) and its footprint (Sensor_Humidity:Sensirion_DFN-4_1.5x1.5mm_P0.8mm_SHT4x_NoCentralPad, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3664408).

Symbol

Sensor_Humidity:SHT4xFrom KiCad's library

Footprint

Sensor_Humidity:Sensirion_DFN-4_1.5x1.5mm_P0.8mm_SHT4x_NoCentralPadFrom KiCad's library

Parameters

Current - Supply: 21uA
Features: Built-in heater；Factory calibration
Humidity: 0%RH~100%RH
Humidity Tolerance: ±2%RH
Interface: I2C
Resolution: 16bit
Temperature Range: -40℃~+125℃
Temperature Tolerance: ±0.2℃
Voltage - Supply: 2.3V~5.5V

Order codes

SHT40I-AD1B-R3LCSC C3664408

Pinout

The pins of the SHT40I-AD1B-R3
Pin	Name	Type
1	SDA	Input/output
2	SCL	Input
3	VDD	Power in
4	VSS	Power in

Show this part on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/parts/sensirion/SHT40I-AD1B-R3" title="SHT40I-AD1B-R3 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/parts/sensirion/SHT40I-AD1B-R3.jpg" alt="SHT40I-AD1B-R3" width="1200" height="900">

A picture that opens the part, for a README

[![SHT40I-AD1B-R3](https://pcbkit.io/embed/parts/sensirion/SHT40I-AD1B-R3.jpg?size=s)](https://pcbkit.io/parts/sensirion/SHT40I-AD1B-R3)

Questions

Is there a KiCad symbol and footprint for the SHT40I-AD1B-R3?

Yes. The symbol is Sensor_Humidity:SHT4x and the footprint Sensor_Humidity:Sensirion_DFN-4_1.5x1.5mm_P0.8mm_SHT4x_NoCentralPad, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the SHT40I-AD1B-R3?

DFN-4(1.5x1.5), with 4 pins. Its footprint is drawn on this page.

Where can I order the SHT40I-AD1B-R3?

JLCPCB lists it as part C3664408, with 0 in stock; the sellers' links on this page open their listings.

What can replace the SHT40I-AD1B-R3?

Parts like it in the library: the SHT40-AD1B-R2 by Sensirion, the SHT40-BD1B-R2 by Sensirion, the SHT41-AD1B-R3 by Sensirion and the SHT40I-BD1B-R3 by Sensirion. Check their datasheets: a part that fits the footprint may still differ in its ratings.