1.Product Introduction Automotive MEMS differential pressure sensor for vehicle DPF, GPF and EGR exhaust pipelines, tracking front and rear pressure difference and feeding signals to ECU. 2.Working Principle Internal MEMS diaphragm deforms under pressure difference to change bridge resistance. Built-in ASIC completes temperature compensation and signal conversion for ECU analysis. 3.Common Technical Parameters Working pressure: -120kPa(G)~5kPa(G)(range can be customized) Precision: ±1%F.S. (10℃~85℃) Total error band: ±1.5%F.S. (-40℃~130℃) Operating temperature: -40℃~130℃ Storage temperature: -40℃~130℃ Protection pressure: 200kPa Burst pressure: 300kPa Service life: One million times full range cycles Vibration: 50~800㎐ Electrical interface: MLK 3 WAYS CODING A-BLCAK ACC TO 96.907.999.999 (customizable) Waterproof class: IPX9K Shell material: PBT+30%GF Supply voltage: 5±0.25VDC Output voltage: 0.5~4.5VDC (adjustable within 5V) Supply current: 5mA (Max) Output response time: less than 10ms Overvoltage protection: 16VDC 60min Reverse voltage: -14VDC 60s Short circuit protection: Yes EMC(150khz ~ 2.5GHz): 50V/m EMC(80mhz ~ 3Ghzz): 100V/m ESD: 15KV 4.Product Structure MEMS sensing chip, ASIC compensation circuit, sealed plastic shell, double pressure guide tubes, automotive waterproof connector 5.Core Functions Detect soot blockage of particulate filter Control automatic filter regeneration Adjust EGR exhaust recirculation volume Diagnose exhaust system failure 6.Typical Fault Performance Engine warning light on Abnormal filter regeneration Increased fuel consumption, unqualified exhaust 7.Application Scope Diesel/gasoline vehicles, commercial trucks, construction machinery, hybrid cars