1.Core Electrical Specifications (Industrial Standard) ● Working pressure: 0~50kPaG (range can be adjusted) ● Precision: ±1.0%F.S. ● Total error band: ±1.0%F.S. (-20℃~+85℃) ±1.5%F.S. (-40℃~+140℃) ● Operating temperature: -40~+140℃ ● Storage temperature: -40~+140℃ ● Protection pressure: 100kPaG ● Bursting pressure: 150kPaG ● Working medium: automobile exhaust ● Service life: more than 1 million times ● Vibration: 10g (50Hz-2000Hz) ● Protection level: IP69K ● Shell material: PBT+30%GF ● Supply voltage: 5.0±0.25VDC ● Output voltage: 0.5~4.5VDC (adjustable in 5V range) ● Supply current: < 10mA ● Response time: < 10ms ● Overvoltage protection: 16VDC ● Reverse voltage: -14VDC ● Short circuit protection: Yes ● EMC (150KHz~2.5GHz) : 50V/m ● EMC (80MHz~3GHz) : 100V/m ● ESD:15KV 2.Basic Definition It is an automotive MEMS piezoresistive sensor used to measure the pressure difference (ΔP = P₁ − P₂) between two fluid points of gas or liquid. It sends analog or digital signals to ECU to realize closed-loop control of engines and exhaust aftertreatment systems. Working Principle Two pressure ports are connected to the high-pressure and low-pressure sides of measured components through silicone hoses. The internal silicon piezoresistive diaphragm deforms under differential pressure, which changes the resistance of the built-in Wheatstone bridge. The integrated ASIC chip amplifies weak signals and completes wide-range temperature compensation. It outputs standard 0.5–4.5V analog signals or SENT digital signals to the vehicle ECU. Main Automotive Applications