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Thick film (piezoresistive) ceramic pressure sensor
Product features ① Using ceramic thick film integrated piezoresistive technology, excellent performance, small size, flexible packaging ② Corrosion resistance, no isolation, direct contact, measurement of corrosive media ③ As a pressure sensing element, it is easy to integrate with transmitter electronic circuit ④ High reliability, good stability, low cost, mass production ⑤ Under the condition of rated pressure, the pressure cycle life is more than 1 million times ⑥ Meet the requirements of EU ROHS directive Main parameters Bridge impedance: 11K Ω Bridge resistance error: ± 30% Overload pressure: 2-3 times of full scale Output signal: 1.5 ~ 4 MV / V Linearity / hysteresis / repeatability: < 0.2 1.5 %FS Power supply voltage: ≤ 5 ~ 30 VDC Zero offset: ≤± 0.4 MV Zero long term stability: ± 0.25% FS, typ (20 ℃) Insulation resistance: 1g Ω (test conditions: 25 ℃, Rh ≥ 75%, 100VDC) Zero and full temperature drift: a ≤± 0.02% FS / ℃ (0 ℃ ~ 70 ℃) Grade B ≤± 0.05% FS / ℃ (- 10 ℃ ~ 85 ℃) Grade C ≤± 0.1% FS / ℃ (- 10 ℃ ~ 85 ℃) Pin function The function of circuit pin is shown in the table below. Pin number Symbol Function description one +Ub Excitation voltage + terminal two S- Output terminal three -Ub Excitation voltage terminal four S+ Output + terminal Application scope Automobile air conditioning, urea package, air compressor, water pump, fork lift, brake system, tire pressure test, water pressure, water level, etc. Product naming principle and order number HCPS -××× - ×× No code: conventional products; t: with temperature compensation Lead out type: 0-pdag pad; 1-Welding pin; 2-welding cord Pressure range in bar Product model Other ranges and conversion circuits can be customized according to user's requirements.