1.Product Introduction Auto dedicated MEMS pressure sensor installed on carbon canister system. It monitors internal vapor pressure of fuel tank and carbon tank, transmits pressure signals to ECU to control desorption valve work. 2.Working Principle MEMS silicon diaphragm deforms under fuel vapor pressure, Wheatstone bridge resistance changes. Built-in ASIC does temperature compensation and signal conversion for ECU to judge vapor pressure state. 3.Common Technical Parameters Working pressure: -800~200mbarG(range can be customized) Precision: ±30mbar Operating temperature: -40℃~140℃ Storage temperature: -40℃~140℃ Protection pressure: 500mbar Burst pressure: 3bar Electrical interface: TYC01-1718645-1 (customizable) Protection class: IP6K9K Shell material: PBT+30%GF Supply voltage: 5±0.25VDC Output voltage: 0.5~4.5VDC (adjustable within 5V) Supply current: 15mA (Max) Output response time: less than 1.5ms Overvoltage protection: 16VDC 5min Short circuit protection: Yes EMC(150khz ~ 2.5GHz): 50V/m EMC(80mhz ~ 3Ghzz): 100V/m ESD: 15KV 4.Product Structure MEMS pressure sensing chip, integrated signal compensation circuit, sealed plastic shell, rubber sealing ring, automotive wire connector 5.Core Functions Real-time monitor carbon tank internal vapor pressure Control carbon tank desorption cycle Prevent fuel vapor leakage to meet emission standards EVAP system fault self-diagnosis 6.Typical Fault Performance Engine malfunction light lights up Evaporation system fault code stored Abnormal fuel consumption Unqualified vehicle exhaust detection 7.Application Scope Gasoline passenger cars, hybrid vehicles, small gasoline engines