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Tin Dioxide Semiconductor Gas Sensor for Alcohol Detection - SB-30-00

  • Tin Dioxide Semiconductor Gas Sensor for Alcohol Detection
  • Tin Dioxide Semiconductor Gas Sensor for Alcohol Detection
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• Target gas: Alcohol
• Heater voltage: 0.9 V ± 0.05 V
• Circuit voltage: Less than 5 V
• Operating temperature: -10°C to 60°C
• Storage temperature: -20°C to 70°C
• Relative humidity: Less than 95% RH
• Sensor resistance: 0.3 kΩ to 5.0 kΩ
• Portable breath alcohol checker

  • Model Number: SB-30-00
  • Data Sheet: Date Sheet File
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Product Specification

SB-30-00 Alcohol Sensor Description
The SB-30 is a tin dioxide semiconductor gas sensor which has a high sensitivity to alcohol with quick response speed. This model is suitable for alcohol detection such as portable breath alcohol checker or ignition locking system in automobles.

SB-30-00 Alcohol Sensor Application
• Portable breath alcohol checker
• Ignition locking system in automobles

SB-30-00 Alcohol Sensor Specifications

Standard Operating conditions
Symbol
 Parameter
 Specification
 Conditions etc.
VH
 Heater voltage
 0.9 V ± 0.05 V
 AC, DC or pulse driving
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
IH Heater current
 132 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
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-30-00
Symbol
 Parameter
 Specification
 Conditions etc.
RS
 Sensor resistance
 0.3 kΩ to 5.0 kΩ
 at ethanol 300 ppm
β
 Sensitivity
 0.35 to 0.65
 Rs (at ethanol 300 ppm)
Rs (at ethanol 50 ppm)
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%
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 after
test.
Shock
 Acceleration:
Number of impacts:
 100 G
5 times

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