TGS8100 - For The Detection of Air Contaminants

TGS8100 - for the detection of Air Contaminants

Features
* Surface mount package
* Low power consumption
* High sensitivity to cigarette smoke, cooking odors, and gaseous air contaminants
* Long life
* Low cost

Applications
* Indoor air quality monitors
* Air cleaners
* Ventialtion control
* Kitchen range hood control

The sensing element is comprised of a sensing chip and an integrated heater formed on a silicon substrate using MEMS technology, and a metal-oxide semiconductor layer formed on the sensing chip. The device is housed in a surface-mount ceramic package. Due to miniaturization of the sensing chip, TGS8100 requires a heater power consumption of only 15mW, and is suitable for low-power equipment and battery-operated instruments. In the presence of detectable gas, sensor

The TGS8100 has high sensitivity to low concentrations of gaseous air contaminants such as cigarette smoke and cooking odors. By utilizing the change ratio of sensor resistance from the resistance in clean air as relative response, human perception of air contaminants can be simulated and practical air quality control can be achieved.

Specifications

Model number	TGS8100
Sensing principle	MOS type
Standard package	Ceramic
Target gases	Air contaminants (hydrogen, ethanol, etc.)
Typical detection range	1 ~ 30ppm H2
Standard circuit conditions	Heater voltage	VH	1.8V DC±2%
Circuit voltage	VC	max 3.0V DC for 2msec 0v ≥ 998msec
Load resistance	RL	variable (10kΩ min.)
Electrical characteristics under standard test conditions	Heater resistance	RH	approx. 110Ω at room temp.
Heater current	IH	8mA (typical)
Heater power consumption	PH	15mW (typical)
Sensor resistance	RS	10kΩ ~ 300kΩ in air
Sensitivity (change ratio of Rs)	~0.6	Rs (10ppm H2) Rs air
Standard test conditions	Test gas conditions	normal air at 20±2˚C, 65±5%Rh
Circuit conditions	same as std circuit conditions
Conditioning period before test	1 hour or longer