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Company Info
Shenzhen Isweek Ltd Shenzhen Isweek Ltd

Street Address: 16 Floor, Building #3, Zhongke Mansion, Gaoxin South 1st Rd, Hi-Tech Park, Nanshan

City: Shenzhen

Province: Guangdong

Country/Region: China

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TGS2603 - for detection of Odor and Air Contaminants

TGS2603 - for detection of Odor and Air Contaminants

Application:  Brand Name: Figaro

Market Type:  After Market

Maximum Prodcution Capacity:  3000 Pcs/Month

Delivery Time:  5~7 Work Days

Place of origin:  Japan

Price Terms:  FOB

Delivery Port:  HK

Payment Terms:  T/T

Product Attribute:

Output:Analog signal


Brand Name: Figaro

Production Description:

TGS2603 - for detection of Odor and Air Contaminants



Model number TGS2603
Sensing principle MOS type
Standard package TO-5 metal can
Target gases

Air contaminants 

(Trimethylamine, methyl mercaptan, etc.)

Typical detection range 1 ~ 10ppm EtOH
Standard circuit conditions Heater voltage VH 5.0±0.2V AC/DC
Circuit voltage VC 5.0±0.2V DC Ps15mW
Load resistance RL variable 0.45k min.
Electrical characteristics under standard test conditions Heater resistance RH approx 67 at room temp. (typical)
Heater current IH 48mA
Heater power
PH 240mW VH =5.0V AC/DC
sensor resistance RS 20k ~ 200k in air
(change ratio of Rs)
<0.5 Rs (10ppm EtOH) Rs air
Standard test conditions Test gas conditions normal air at 20±2C, 65±5%RH
Circuit conditions Vc = 5.0±0.2V DC V= 5.0±0.2V AC/DC
Conditioning period
before test
96 hours or longer

    * Low power consumption
    * High sensitivity to amine-series and sulfurous odor gases
    * High sensitivity to food odors
    * Long life and low cost
    * Uses simple electrical circuit

    * Air cleaners
    * Ventilation control
    * Deodorizer control
    * Air quality monitors

    The sensing element is comprised of a metal oxide semiconductor layer formed on an alumina substrate of a sensing chip together with an integrated heater. In the presence of a detectable gas, the sensor's conductivity increases depending on the gas concentration in the air. A simple electrical circuit can convert the change in conductivity to an output signal which corresponds to the gas concentration.

    The TGS2603 has high sensitivity to low concentrations of odorous gases such as amine-series and sulfurous odors generated from waste materials or spoiled foods such as fish. 

    By utilizing the change ratio of sensor resistance from the resistance in clean air as the relative response, human perception of air contaminants can be simulated and practical air quality control can be achieved.

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