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Tin Dioxide Semiconductor Gas Sensor For Methane Detection

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Product Name:Tin Dioxide Semiconductor Gas Sensor For Methane Detection

Tin Dioxide Semiconductor Gas Sensor For Methane Detection

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Product Description:

SP-12A-00 Methane Sensor CH4 Sensor Description
The SP-12A is a tin dioxide semiconductor gas sensor which has a good sensitivity and excellent selectivity to methane. The SP-12A has also a significant feature in good stability after exposure to silicone compounds.

Using the SP-12A, the most reliable methane detection can be achieved.

SP-12A-00 Methane Sensor CH4 Sensor Application
Home gas leak detector

SP-12A-00 Methane Sensor CH4 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	P_S < 15 mW
R_H	Heater resistance	42 ± 2	at room temperature
P_H	Heater power consumption	380 mW (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	-10°C to 60°C	Recommended range
Tas	Storage temperature	-20°C to 70°C
RH	Relative humidity	Less than 95% RH
(O2)	Oxygen concentration	21% ± 1% (Standard condition)	Absolute minimum level: more than 18%
(O2)	Oxygen concentration	The sensitivity characteristics are influenced by the variation in oxygen concentration. Please consult FIS for details.
Sensitivity characteristics
Model	SP-12A-00
Symbol	Parameter	Specification	Conditions etc.
R_S	Sensor resistance	4 k to 15 k	at 5000ppm of methane/air
	Sensitivity slope	0.60 to 0.75	R_S at CH4 7000 ppm R_S at CH4 3000 ppm
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 k ± 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	Height: Number of impacts:	100 G 5 times