The AWM43300V is a Microbridge Mass Airflow Sensor operates on the theory of heat transfer. Mass airflow is directed across the surface of the sensing elements. Output voltage varies in proportion to the mass air or other gas flow through the inlet and outlet ports of the package. The specially designed housing precisely directs and controls the airflow across the microstructure sensing element. Mechanical design of the package allows it to be easily mounted to printed circuit boards. The microbridge mass airflow sensor has a unique silicon chip based on advanced microstructure technology. It consists of a thin-film, thermally isolated bridge structure containing heater and temperature sensing elements. The bridge structure provides a sensitive and fast response to the flow of air or other gas over the chip. Dual sensing elements positioned on both sides of a central heating element indicate flow direction as well as flow rate.
Precision silicon micromachining
Sensitive to low flows 0.1 SCCM to 20 SLPM
Adaptable for use with higher flows
Fast response time
Analogue output
Low power consumption
Repeatable response
Laser trimmed interchangeability
Accurate and cost effective flow sensing
In-line printed circuit board terminals
Standard 2.54mm (0.100") mounting centres
Accurate sensing of low pressure 0.001 to 4.0" H2O (0.003 to 10mbar)