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Tin Dioxide Semiconductor Gas Sensor for Hydrocarbon Detection
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Price
Price on request ≥1piece
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Model Number
SB-11A-00 -
Data Sheet
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Package
Original packaging -
Specs
SB-11A-00 -
Quantity
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Product Description
SB-11A-00 Hydrocarbon Gas Sensor Description
The SB-11A is a tin dioxide semiconductor gas sensor which has an excellent performance in methane, propane, butane and other hydrocarbons detection with significant low power consumption concept (120mW).
High sensitivity, low sensitivity to noise gases, quick response speed and strong poisoning resistance features achieve reliable gas detection system applications.
SB-11A-00 Hydrocarbon Gas Sensor Application
• Home gas leak detector
SB-11A-00 Hydrocarbon Gas Sensor Specifications
The SB-11A is a tin dioxide semiconductor gas sensor which has an excellent performance in methane, propane, butane and other hydrocarbons detection with significant low power consumption concept (120mW).
High sensitivity, low sensitivity to noise gases, quick response speed and strong poisoning resistance features achieve reliable gas detection system applications.
SB-11A-00 Hydrocarbon Gas Sensor Application
• Home gas leak detector
SB-11A-00 Hydrocarbon Gas Sensor Specifications
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Standard Operating conditions |
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Symbol |
Parameter |
Specification |
Conditions etc. |
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VH |
Heater voltage |
0.9 V ± 0.05 V |
AC or DC |
| VC |
Circuit voltage |
Less than 5 V |
DC (polarity is important) |
| RL |
Load resistance |
Variable (> 200 Ω) |
PS < 10 mW |
| RH |
Heater resistance |
2.8 Ω ± 0.2 Ω |
at room temperature |
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IH |
Heater current |
130 mA |
IH = VH / RH (typical value) |
| PH |
Heater power consumption |
120 mW |
PH = VH2 / RH (typical value) |
| PS |
Power dissipation of sensing element |
Less than 10 mW |
PS = (VC - VRL)2/RS |
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Environmental conditions |
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Symbol |
Parameter |
Specification |
Conditions etc. |
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Tao |
Operating temperature |
-20°C to 50°C |
Recommended range |
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Tas |
Storage temperature |
-20°C to 70°C |
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RH |
Relative humidity |
Less than 95% RH |
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(O2) |
Oxygen concentration |
21% (Standard condition) |
Absolute minimum level: more than 18% |
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The sensitivity characteristics are influenced by the variation in oxygen concentration. |
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Sensitivity characteristics |
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Model |
SB-11A-00 (revised on March 6, 2008) |
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Symbol |
Parameter |
Specification |
Conditions etc. |
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RS |
Sensor resistance |
0.2kΩ to 1.0 kΩ |
at methane 3000 ppm |
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β |
Sensitivity |
0.48 to 0.68 |
Rs (at CH4 3000 ppm)
Rs (at CH4 1000 ppm) |
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γ |
Sensitivity |
≥ 8.0 |
Rs (in air)
Rs (at i-C4H10 1000 ppm) |
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∆ |
Sensitivity |
≥ 10.0 |
Rs (in air)
Rs (at CH4 3000 ppm) |
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Standard Test Conditions: |
Temp: 20°C ± 2°C Humidity:65% ± 5% (in clean air) |
VC : 5.0 V ± 1% VH : 0.9 V ± 1% RL : 750 Ω ± 5% |
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Pre-heating time: more than 48 hours |
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Mechanical characteristics |
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Items |
Conditions |
Specifications |
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Vibration |
Frequency: Vertical amplitude: Duration: |
100 cpm 4 mm 1 hour |
Should satisfy the specifications shown in the sensitivity characteristics. |
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Shock |
Acceleration: Number of impacts: |
100 G 5 times |
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