Infrared LED Elements
for NDIR Gas Sensing

Infrared LEDs are the best infrared light source for NDIR type gas sensing.

AKM's infrared LEDs utilize the semiconductor thin film epitaxial growth technology accumulated through manufacturing of magnetic sensors, which achieves emission wavelength control optimized for the gas absorption wavelength band and high-speed, high-output emission control.

Our own compact molded resin packaging technology contributes to the downsizing of gas sensors as the world's smallest class Surface Mounted Devices (SMD) infrared LEDs.

LED Element Developed for Light Source of NDIR Flammable Gas Sensor

AK9703AJ

The AK9703AJ is an infrared light emitting element (IR-LED) with a peak emission wavelength in the infrared absorption band of Methane that is one of the most well-known flammable gas.

Compared with the W filament bulb used in the conventional NDIR type gas sensor, it can control the light emission at high speed and can also reduce the current consumption of the flammable gas sensor dramatically by combining with an AKM infrared light receiving element, the AK9730AJ, which has quick response performance. In addition, it has a built-in light-receiving element for temperature correction, and high-precision sensing can be realized by monitoring the luminescence amount.
Since the AK9703AJ adopts a small surface mount type, it is effective for miniaturizing the sensor.
Since LEDs has a much longer life than the bulbs, a highly reliable sensor can be accomplished.

● High power infrared LED

● High-speed Driving
High speed drive capability at 100 kHz or more

● High Reliability
High tolerance to stress such as vibration with plastic molded package

● Small plastic package
SMD (2.6mm x 1.9mm x 0.4mm)

LED Element Developed for Light Source of NDIR CO2 Sensor

AK9700AE

The AK9700AE is an infrared light emitting element (IR-LED) with a peak emission wavelength in the infrared absorption band of CO2.

Compared with the W filament bulb used in the conventional NDIR type CO2 sensor, it can control the light emission at high speed and can also reduce the current consumption of the CO2 sensor dramatically by combining with an AKM infrared light receiving element, the AK9710AE, which has quick response performance.In addition, it has a built-in light-receiving element for temperature correction, and high-precision sensing can be realized by monitoring the luminescence amount.
Since the AK9700AE adopts a small surface mount type, it is effective for miniaturizing the sensor.
Since LEDs has a much longer life than the bulbs, a highly reliable sensor can be accomplished.

● High power infrared LED

● High-speed Driving
100 kHz or more High Speed Drive is available

● High Reliability
Achieve high vibration resistance with a plastic molded package Small plastic package

● Small plastic package
SMD (2.6mm x 1.9mm x 0.4mm)

● Automotive grade: AK9700AD

Lineup

Infrared LED Elements for NDIR Gas Sensing

Part Number
Part Status
Peak Emission 
Wavelength
[μm]
Spectral Half Width
[μm]
Package Size
[mm]
Other
Operating Temperature [℃]
Device Package
Number of Pins
AK9700AE
NEW
4.3
1
2.6 x 1.9 x 0.4

                                
0 to 50
SON
8
AK9700AD
NEW
4.3
1
2.6 x 1.9 x 0.4
Automotive grade
-40 to 90
SON
8
AK9703AJ
NEW
3.6
0.7
2.6 x 1.9 x 0.4

                                
-40 to 85
SON
8