Infrared Sensors
for NDIR Gas Sensing

The CO2 sensor contributes to realization of a comfortable indoor environment and energy saving of air conditioning with high-rise office buildings and highly insulated, airtight houses.
Also, by optimizing the operation of the air conditioning of the car as well as the housing, we reduce the load on the engine and the motor and contribute to improving fuel economy.
On the other hand, it can also be applied as a refrigerant leak detection sensor for automotive air conditioning, which is scheduled to replace CO2 refrigerant in the future.

IR Sensor with Optical Filter:
The AK9710 is suitable for NDIR CO2 sensing

AK9710AE

CO2 absorbs infrared light of a specific wavelength. The AK9710 has an optical filter with a transmission band in the absorption band of CO2 in the IR sensor. This makes it easy to configure non-dispersive optical (NDIR: Non Dispersive Infrared) CO2 sensor by providing an external infrared light source.

● High Sensitivity, High Speed Response
Conventionally, a thermopile is used in an NDIR gas sensor. The AK9710 has a 3X higher sensitivity and more than 1000 times faster responsiveness than thermopile solutions.

● Integrate Optical Filter that Passes Infrared Observing Band
There is measurable spectrum in the infrared band of CO2. The AK9710 has an optical filter that only passes the infrared portion of the band. With this optical filter, system designs can be simplified.

● Small Plastic Package
SMD Type (3mm x 3mm x 1.01mm)

● Automotive grade: AK9710AD

Ultrasmall and high sensitivity infrared sensor

IR1011

IR1011 is a quantum-type ultrasmall infrared sensor corresponding to surface mounting, which can operate at room temperature.

This sensor is a InSb photo diode besed on manufacturing technologies of AKM's Hall elements.

The sensor can detect infrared with no power supply, and has features of quantum-type infrared sensor such as high sensitivity, high speed response and DC output.

Lineup

Infrared Sensors for NDIR Gas Sensing

Part Number
Part Status
Output Current 
Ip (MIN.)
[nA]
Output Current 
Ip (TYP.)
[nA]
Output Current 
Ip (MAX.)
[nA]
Internal resistance 
(MIN.)
[kΩ]
Internal resistance 
(TYP.)
[kΩ]
Internal resistance 
(MAX.)
[kΩ]
Optical Filter
[μm]
Package Size
[mm]
Other
Operating Temperature [℃]
Device Package
Number of Pins
IR1011
MP
4.5

                                
7.5
112

                                
188

                                
2.65 x 1.9 x 0.4

                                
-40 to 85
SON
4
AK9710ADF01
MP
1.04

                                
4.9
75

                                
188
CWL : 4.28,  FWHM : 0.27
3 x 3 x 1.01
Automotive grade
-40 to 85
SON
10
AK9710AEF3A
NEW
0.58

                                
2.04
75

                                
188
CWL : 3.91,  FWHM : 0.09
3 x 3 x 1.01

                                
-40 to 85
SON
10
AK9730AJF21
NEW
2.9

                                
14.2
15

                                
250
CWL : 3.32, FWHM : 0.19
3 x 3 x 1.01

                                
-40 to 85
SON
10
AK9710AEF01
NRND
1.04

                                
4.9
75

                                
188
CWL : 4.28, FWHM : 0.27
3 x 3 x 1.01

                                
-40 to 85
SON
10