Datasheet

Revised 10/12
3
TECHNICAL INFORMATION FOR TGS2620
Top view
Side view
Bottom view
Sensing
element
ø9.2±0.2
3.6±0.1
1
2
3
4
3.6±0.1
ø8.1±0.2
ø0.55±0.05
ø5.1
90˚
7.8±0.5
10.0±1.0
1-5 Circuit & operating conditions
The ratings shown below should be maintained at all
times to insure stable sensor performance:
1-6 Specications
NOTE 1
1-7 Dimensions
Fig. 3 - Sensor dimensions
Mechanical Strength:
The sensor shall have no abnormal findings in
its structure and shall satisfy the above electrical
specications after the following performance tests:
Withdrawal Force -
(pin from base)
Vibration -
Shock -
withstand force of 5kg in each
direction
frequency-1000c/min., total
amplitude-4mm, duration-one
hour, direction-vertical
acceleration-100G, repeated 5
times
NOTE 1: Sensitivity characteristics are obtained
under the following standard test conditions:
(Standard test conditions)
Temperature and humidity: 20 ± 2˚C, 65 ± 5% RH
Circuit conditions: Vc = 5.0±0.01V DC
VH = 5.0±0.05V DC
RL = 10.0kΩ ± 1%
Preheating period: 7 days or more under standard circuit
conditions
All sensor characteristics shown in this brochure
represent typical characteristics. Actual
characteristics vary from sensor to sensor and
from production lot to production lot. The only
characteristics warranted are those shown in
the Specication table above.
Pin connection:
1: Heater
2: Sensor electrode (-)
3: Sensor electrode (+)
4: Heater
u/m: mm
Item Specication
Circuit voltage (VC) 5.0V ± 0.2V AC/DC
Heater voltage (VH) 5.0V ± 0.2V AC/DC
Heater resistance (room temp) 83Ω (typical)
Load resistance (RL) variable (0.45kΩ min.)
Sensor power dissipation (PS) ≤15mW
Operating & storage temperature -40˚C ~ +70˚C
Optimal detection concentration 50 ~ 5,000ppm
Item Specication
Sensor resistance (300ppm ethanol) 1kΩ ~ 5kΩ
Sensor resistance ratio (β) 0.3 ~ 0.5
β = Rs(300ppm ethanol)/Rs(50ppm ethanol)
Heater current (RH) 42 ± 4mA
Heater power consumption (PH) approx. 210mW