SCD40-D-R1

Q: Is there a KiCad symbol and footprint for the SCD40-D-R1?

Yes. The symbol is EasyEDA_Cloud:SCD41-D-R2 and the footprint EasyEDA_Cloud:LGA-20_L10.1-W10.1-P1.25-TL, both drawn on this page. PCBKit places them on a board for you when you design with it.

Q: What package is the SCD40-D-R1?

SMD, with 21 pins. Its footprint is drawn on this page.

Q: Where is the SCD40-D-R1 datasheet?

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

Q: Where can I order the SCD40-D-R1?

JLCPCB lists it as part C3037696, with 739 in stock; the sellers' links on this page open their listings.

Q: Which open-source boards use the SCD40-D-R1?

6 boards in 6 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Sensirion

-10℃~+60℃ 0.36mA 0ppm~40000ppm 10.1mm 10.1mm 2.4V~5.5V 6.5mm Air quality I2C Reset function ±5% SMD Gas Sensors ROHS

Extended

Datasheetsensirion/SCD40-D-R1

Category: Gas Sensors
Package: SMD
Pins: 21

Overview

The SCD40-D-R1 is a gas Sensor made by Sensirion in a SMD package with 21 pins. -10℃~+60℃ 0.36mA 0ppm~40000ppm 10.1mm 10.1mm 2.4V~5.5V 6.5mm Air quality I2C Reset function ±5% SMD Gas Sensors ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:SCD41-D-R2, from EasyEDA) and its footprint (EasyEDA_Cloud:LGA-20_L10.1-W10.1-P1.25-TL, from EasyEDA), ready for a KiCad board. 739 are in stock at JLCPCB (part C3037696). 6 open-source boards in 6 repositories on GitHub use it.

Symbol

EasyEDA_Cloud:SCD41-D-R2From EasyEDA

Footprint

EasyEDA_Cloud:LGA-20_L10.1-W10.1-P1.25-TLFrom EasyEDA

From the datasheet

Supply, least: 2.4 V · VDD, recommended operating min · p. 4
Supply, most: 5.5 V · VDD, recommended operating max · p. 4
Supply, absolute maximum: 6 V · VDD, absolute max · p. 4
Works from: -10 °C · Operating temperature min · p. 4
Works up to: 60 °C · Operating temperature max · p. 4
Takes working: 15 mA · VDD and VDDH combined, periodic measurement typical at VDD = 3.3 V · p. 4
Takes working: 11 mA · VDD and VDDH combined, periodic measurement typical at VDD = 5 V · p. 4
Takes at most: 205 mA · VDD and VDDH combined, peak max at VDD = 3.3 V · p. 4
Takes at most: 137 mA · VDD and VDDH combined, peak max at VDD = 5 V · p. 4

What it is and has

Sensing technology: Photoacoustic PASens® · p. 1
Dimensions: 10.1 x 10.1 x 6.5 mm3 · p. 1
Interface: Digital I2C · p. 1
Integrated sensors: Temperature and humidity · p. 1
CO2 output range: 0 ppm – 40’000 ppm · p. 1
Package: LGA · p. 5

Around it

res 10 kΩ: between SCL and VDD; Example external I2C pull-up; size for bus capacitance and communication frequency. · p. 5

Specifications

Parameter	Conditions	As printed	Page
Supply voltage DC VDD	Typical supply voltage: 3.3 or 5.0 V	min 2.4 · max 5.5 V	4
Voltage ripple peak to peak VRPP		max 30 mV	4
Peak supply current	VDD = 3.3 V	typ 175 · max 205 mA	4
Peak supply current	VDD = 5 V	typ 115 · max 137 mA	4
Average supply current for periodic measurement, periodic measurement IDD	VDD = 3.3 V	typ 15 · max 18 mA	4
Average supply current for periodic measurement, periodic measurement IDD	VDD = 5 V	typ 11 · max 13 mA	4
Average supply current for periodic measurement, low power periodic measurement IDD	VDD = 3.3 V	typ 3.2 · max 3.5 mA	4
Average supply current for periodic measurement, low power periodic measurement IDD	VDD = 5 V	typ 2.8 · max 3 mA	4
Output low level voltage VOL	3 mA sink current	max 0.66 V	4
Temperature operating conditions		min -10 · max 60 °C	4
Humidity operating conditions	Non-condensing	min 0 · max 95 %RH	4
DC supply voltage		min -0.3 · max 6 V	4
Max voltage on pins SDA, SCL, GND	Maximum VDD+0.3 V	min -0.3 V	4
Input current on pins SDA, SCL, GND		min -280 · max 100 mA	4
Short term storage temperature		min -40 · max 70 °C	4
Recommended storage temperature		min 10 · max 50 °C	4
ESD HBM		max 2 kV	4
ESD CDM		max 500 V	4
Sensor lifetime	Typical operating conditions; > 10 years	min 10 years	4
Average ramp-up rate	< 3 °C / second	max 3 °C / second	21
Liquid phase TL	< 220 °C	max 220 °C	21
Liquid phase tL	< 60 seconds	max 60 seconds	21
Peak temperature TP	≤ 235 °C	max 235 °C	21
Peak temperature tP	< 30 seconds	max 30 seconds	21
Ramp-down rate	Temperature > TL; < 4 °C / seconds	max 4 °C / seconds	21

Ordering codes, by the datasheet

SCD40-D-R2: LGA · SCD40; 600 sensors per reel; product number 3.000.521 · p. 21
SCD40-D-R1: LGA · SCD40; 60 sensors per reel; product number 3.000.496 · p. 21
SCD41-D-R2: LGA · SCD41; 600 sensors per reel; product number 3.000.498 · p. 21
SCD41-D-R1: LGA · SCD41; 60 sensors per reel; product number 3.000.497 · p. 21
SEK-SCD41-Sensor: Development board with cables · SCD41 sensor set; ordering quantity 1; product number 3.000.455 · p. 21
SEK-SensorBridge: Bridge connecting SEK-SCD41-Sensor to computer; ordering quantity 1; product number 3.000.124 · p. 21

Parameters

Current - Supply: 0.36mA
Current - Supply(Max): 205mA
Features: Reset function
Height: 6.5mm
Interface: I2C
Length: 10.1mm
Measurement Range: 0ppm~40000ppm
Operating Temperature: -10℃~+60℃
Tolerance: ±5%
Type: Air quality
Voltage - Supply: 2.4V~5.5V
Voltage - Supply(Absolute Max): 6V
Width: 10.1mm

Order codes

SCD40-D-R1LCSC C3037696

Pinout

The pins of the SCD40-D-R1
Pin	Name	Type
1	DNC	Unspecified
2	DNC	Unspecified
3	DNC	Unspecified
4	DNC	Unspecified
5	DNC	Unspecified
6	GND	Unspecified
7	VDD	Unspecified
8	DNC	Unspecified
9	SCL	Unspecified
10	SDA	Unspecified
11	DNC	Unspecified
12	DNC	Unspecified
13	DNC	Unspecified
14	DNC	Unspecified
15	DNC	Unspecified
16	DNC	Unspecified
17	DNC	Unspecified
18	DNC	Unspecified
19	VDDH	Unspecified
20	GND	Unspecified
21	GND	Unspecified

Open-source boards using it

All 6

2 layers45 × 45 mm
Aeroq Hardware v3
EnriqueNeyra/Aeroq
An Indoor Air Quality Monitor Powered by ESP32, SCD40, and SEN54
56 parts130
2 layers82 × 36.5 mm
RoomSensor
enwi/RoomSensor

75 parts2
4 layers76 × 85 mm
SuperNicePCB
laemo10/SuperNicePCB
An integrated, multi-sensor UWB anchor PCB designed for real-time indoor object tracking (via Double-Sided Two-Way Ranging) and non-invasive human presence/occupancy monitoring.
68 parts
2 layers45 × 95 mm
Airquality
MorgenWebDigital/airquality
A battery-powered indoor air quality monitor. Real CO₂ from a photoacoustic sensor, VOC and NOx, temperature, humidity and ambient light, shown on a 2.13" e-paper display and sent over Bluetooth LE.
78 parts
2 layers40 × 40 mm
Airqualitymini
MorgenWebDigital/airqualitymini
A stationary indoor air quality sensor. Real CO₂, VOC and NOx, temperature and humidity. No display, no battery. Powered from USB-C, read out over Bluetooth LE.
32 parts
4 layers90.5 × 53 mm
NH AirQuality
NottingHack/NH-AirQuality

67 parts

Show this part on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/parts/sensirion/SCD40-D-R1" title="SCD40-D-R1 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/SCD40-D-R1.jpg" alt="SCD40-D-R1" width="1200" height="900">

A picture that opens the part, for a README

[![SCD40-D-R1](https://pcbkit.io/embed/parts/sensirion/SCD40-D-R1.jpg?size=s)](https://pcbkit.io/parts/sensirion/SCD40-D-R1)

Questions

Is there a KiCad symbol and footprint for the SCD40-D-R1?