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Tin Dioxide Semiconductor Gas Sensor for CO Detection
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Price
Price on request ≥1piece
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Model Number
SB-500-12 -
Data Sheet
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Package
Original packaging -
Specs
SB-500-12 -
Quantity
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Product Description
SB-500-12 Carbon Monoxide Sensor CO Sensor Description
The SB-500-12 is a tin dioxide semiconductor gas sensor which has an excellent performance in CO detection. Using a mini-bead type sensing element with a periodic temperature change operation method, high sensitivity, selectively, small effect from humidity and other remarkable characteristics have been achieved. The SB-500-12 realizes the development of reliable CO detection devices.
SB-500-12 Carbon Monoxide Sensor CO Sensor Application
• Home gas leak detector
SB-500-12 Carbon Monoxide Sensor CO Sensor Specifications
The SB-500-12 is a tin dioxide semiconductor gas sensor which has an excellent performance in CO detection. Using a mini-bead type sensing element with a periodic temperature change operation method, high sensitivity, selectively, small effect from humidity and other remarkable characteristics have been achieved. The SB-500-12 realizes the development of reliable CO detection devices.
SB-500-12 Carbon Monoxide Sensor CO Sensor Application
• Home gas leak detector
SB-500-12 Carbon Monoxide Sensor CO Sensor Specifications
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Standard Operating conditions |
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Symbol |
Parameter |
Specification |
Conditions etc. |
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VH (H) |
Heater voltage (high) |
0.9 V ± 5% |
AC, DC or pulse |
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VH (L) |
Heater voltage (low) |
0.2 V ± 5% |
AC, DC or pulse |
| VC |
Circuit voltage |
Less than 5 V |
DC: Pin2 (+) - Pin 1 (-) |
| 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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TH (H) |
Heating time (high) |
5 sec ± 0.1 sec |
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TH (L) |
Heating time (low) |
20 sec ± 0.1 sec |
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DT (L) |
Detection timing (low) |
< 0.1 sec |
before switching to LOW |
| IS (H) |
Current consumption (high) |
132mA ± 15mA |
VH=0.9V |
| IS (L) |
Current consumption (low) |
59mA ± 10mA |
VH=0.2V |
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PS |
Power dissipation
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Less than 10 mW |
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Environmental conditions |
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Symbol |
Parameter |
Specification |
Conditions etc. |
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Tao |
Operating temperature |
-10°C to 60°C |
Recommended range |
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Tas |
Storage temperature |
-30°C to 100°C |
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RH |
Relative humidity |
Less than 95% RH |
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(O2) |
Oxygen concentration |
21% ± 1% (Standard condition) |
Absolute minimum level: more than 18% |
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The sensitivity characteristics are influenced by the variation in oxygen concentration. Please consult FIS for details. |
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Sensitivity characteristics |
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Model |
SB-500-12 |
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Symbol |
Parameter |
Specification |
Conditions etc. |
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RS |
Sensor resistance |
4.5 kΩ - 40 kΩ |
at 100ppm of CO |
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α(30-100) |
Sensitivity slope (30 - 100 ppm) |
1.05 to 2.1 |
log (RS(30 ppm) / RS(100 ppm)) log (30/100) |
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α(100-300) |
Sensitivity slope (100 - 300 ppm) |
0.5 to 1.0 |
log (RS(300 ppm) / RS(100 ppm))
log (300/100)
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Standard Test Conditions: |
Temp: 20°C ± 2°C Humidity: 65% ± 5% (in clean air) |
VC : 5.0 V ± 5%
VH (high) : 0.9 V ± 5% VH (low) : 0.2 V ± 5% RL : 10 kΩ ± 1% |
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Pre-heating time: more than 4 days |
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Mechanical characteristics |
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Items |
Conditions |
Specifications |
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Vibration |
Frequency: Acceleration: Sweep time: |
5 - 500 Hz 1.3G 40 min. |
Should satisfy the specifications shown in the sensitivity characteristics after test. |
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Drop |
Height: Number of impacts: |
60 cm 3 times |
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