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Tin Dioxide Semiconductor Gas Sensor for Air Quality Controls - SP3S-AQ2-01

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• Target gas: Carbon monoxide/VOC/Alcohol
• Operating temperature: 0°C to 40°C
• Storage temperature: -10°C to 70°C
• Relative humidity: Less than 95% RH
• Sensor resistance: 5kΩ to 20kΩ
• Sensitivity slope: 0.15 to 0.45
• Air quality control/Automobile

Model Number: SP3S-AQ2-01
Data Sheet:

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Product Specification

SP3S-AQ2-01 Tin Dioxide Semiconductor Gas Sensor Description
The SP3S-AQ2-01 series is a tin dioxide semiconductor gas sensor which has a high sensitivity to various air pollution sources (e.g.VOCs) with quick response speed.

This series uses a compact plastic housing with 3 pins configuration achieving an excellent gas sensing performance with low cost.This model is ideal for various design of automatic air quality control systems ; Ventilation Fans , air purifiers.

SP3S-AQ2-01 Tin Dioxide Semiconductor Gas Sensor Application
• Air quality control
• Automobile

SP3S-AQ2-01 Tin Dioxide Semiconductor Gas Sensor Specifications

Standard Operating conditions
Symbol	Parameter	Specification	Conditions etc.
V_H	Heater voltage	5.0 V ± 4%	AC or DC
V_C	Circuit voltage	5.0 V ± 4%	AC or DC
R_L	Load resistance	Variable	PS < 15 mW
R_H	Heater resistance	86 Ω ± 5%	at room temperature
P_H	Heater power consumption	210mW (Typical value)	P_H = V_H²/R_H
P_S	Power dissipation of sensing element	Less than 15 mW	P_S = (V_C- V_RL)²/R_S
Environmental conditions
Symbol	Parameter	Specification	Conditions etc.
Tao	Operating temperature	0°C to 40°C	Recommended range
Tas	Storage temperature	-10°C to 70°C
RH	Relative humidity	Less than 95% RH
(O2)	Oxygen concentration	21% (Typical value)	Absolute minimum level: more than 18%
(O2)	Oxygen concentration	The sensitivity characteristics are influenced by the variation in oxygen concentration.
Sensitivity characteristics
Model	SP3S-AQ2-01
Symbol	Parameter	Specification	Conditions etc.
R_S	Sensor resistance	5kΩ to 20kΩ	in air
β	Sensitivity slope	0.15 to 0.45	RS in 10ppm hydrogen/Rs in air
Standard Test Conditions:		Temp: 20°C ± 2°C Humidity:65% ± 5% (in clean air)	V_C : 5.0 V ± 1% V_H : 5.0 V ± 1% R_L : 10 kΩ ± 5%
Standard Test Conditions:		Pre-heating time: more than 48 hours
Mechanical characteristics
Items	Conditions		Specifications
Vibration	Frequency: Vertical amplitude: Duration:	100 cpm 4 mm 1 hour	Should satisfy the specifications shown in the sensitivity characteristics.
Shock	Acceleration: Number of impacts:	100 G 5 times