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DHT21 on a board, in 3D

DHT21

HAIGU

-40℃~+80℃ 3.3V 5%RH~99%RH 500uA ±3%RH 插件 Temperature and Humidity Sensor ROHS

Extended
DatasheetJLCPCBLCSChaigu/DHT21
Category
Temperature And Humidity Sensor
Package
插件
Pins
4

Overview

The DHT21 is a temperature And Humidity Sensor made by HAIGU in a 插件 package with 4 pins. -40℃~+80℃ 3.3V 5%RH~99%RH 500uA ±3%RH 插件 Temperature and Humidity Sensor ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:AM2302_C55447, from EasyEDA) and its footprint (EasyEDA_Cloud:CONN-TH_4P-P2.50_ZX-XH2.54-4PZZ-Y, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C2880290). 1 open-source board in 1 repository on GitHub use it.

Symbol

VDD1SDA2NC3GND4
EasyEDA_Cloud:AM2302_C55447From EasyEDA

Footprint

1234
EasyEDA_Cloud:CONN-TH_4P-P2.50_ZX-XH2.54-4PZZ-YFrom EasyEDA

Parameters

5
Humidity
5%RH~99%RH
Resolution
±3%RH
Supply Current
500uA
Supply Voltage
3.3V
Temperature
-40℃~+80℃

Order codes

1

Pinout

4
The pins of the DHT21
PinNameType
1VDDUnspecified
2SDAUnspecified
3NCUnspecified
4GNDUnspecified

Open-source boards using it

All 1
  • 2 layers73 × 75 mmPms5003, the printed circuit board in 3D

    Pms5003

    ayoy/kicad-projects

    26 parts2

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A picture that opens the part, for a README
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Questions

Is there a KiCad symbol and footprint for the DHT21?

Yes. The symbol is EasyEDA_Cloud:AM2302_C55447 and the footprint EasyEDA_Cloud:CONN-TH_4P-P2.50_ZX-XH2.54-4PZZ-Y, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the DHT21?

插件, with 4 pins. Its footprint is drawn on this page.

Where is the DHT21 datasheet?

HAIGU publishes it: the Datasheet link on this page opens it.

Where can I order the DHT21?

JLCPCB lists it as part C2880290, with 0 in stock; the sellers' links on this page open their listings.

What can replace the DHT21?

Parts like it in the library: the DHT22 by HAIGU. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the DHT21?

1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

1