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Tin Dioxide Semiconductor Gas Sensor for Hydrocarbon Detection - SP-11-00

  • Tin Dioxide Semiconductor Gas Sensor for Hydrocarbon Detection
  • Tin Dioxide Semiconductor Gas Sensor for Hydrocarbon Detection
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• Target gas: Hydrocarbon
• Heater voltage: 5.0 V ± 4%
• Circuit voltage: 5.0 V ± 4%
• Operating temperature: -10°C to 60°C
• Storage temperature: -20°C to 70°C
• Relative humidity: Less than 95% RH
• Sensor resistance: 1.60 kΩ to 12 kΩ
• Home gas leak detector

  • Model Number: SP-11-00
  • Data Sheet: Date Sheet File
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Product Specification

SP-11-00 Hydrocarbon Gas Sensor Description
The SP-11 is a tin dioxide semiconductor gas sensor which has a high sensitivity to methane, propane, butane and other hydrocarbons with reduced sensitivity to alcohol.

The SP-11 is suitable for general hydrocarbon gas detection.

SP-11-00 Hydrocarbon Gas Sensor Application
• Home gas leak detector

SP-11-00 Hydrocarbon Gas Sensor Specifications

Standard Operating conditions
Symbol
 Parameter
 Specification
 Conditions etc.
VH
 Heater voltage
 5.0 V ± 4 %
 AC or DC
VC Circuit voltage
 5.0 V ± 4 %
 AC or DC
RL Load resistance
 Variable
 PS < 15 mW
RH Heater resistance
 40 Ω ± 2 Ω
 at room temperature
PH Heater power consumption
 400 mW (Typical value)
 PH = VH2 / RH
PS
 Power dissipation of
sensing element
 Less than 15 mW
 PS =(VC - VRL)2/RS
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%
The sensitivity characteristics are influenced by the
variation in oxygen concentration. Please consult FIS
for details.
Sensitivity characteristics
Model
 SB-15-00
Symbol
 Parameter
 Specification
 Conditions etc.
RS
 Sensor resistance
 1.60 kΩ to 12 kΩ
 at 3000 ppm of methane/air
β
 Sensitivity slope
 0.50 to 0.65
 Rs at CH4 3000 ppm
Rs at CH4 1000 ppm
Standard Test Conditions:
 Temp: 20°C ± 2°C
Humidity:65% ± 5%
(in clean air)
VC : 10.0 V ± 1%
VH : 5.0 V ± 1%  
RL : 10 kΩ ± 5%
Pre-heating time: more than 72 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

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