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
Quantity:
- +

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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