Piezoresistive Silicon Differential Pressure Sensor, 0~700kPa to 0~2.5MPa

Piezoresistive silicon differential pressure ensor features a pressure-sensitive sensing chip manufactured with precision technology, providing reliable differential pressure measurement from 0~700kPa to 0~2.5MPa. External pressure is transmitted to the sensing element and converted into a stable electrical signal output in real time. SUCH piezoresistive silicon pressure sensor is housed in a 316L stainless steel body with fully solid-state welding technology. With high sensitivity, excellent linearity, and typical accuracy of ±0.2% FS, it supports both constant voltage power supply (2–10 V) and constant current power supply (0.7–3.3 mA), and suitable for industrial pressure monitoring and control applications.

Feature

• Standard 19 mm Diameter: Industry-standard outer diameter for easy integration.
• Corrosion-Resistant 316L Stainless Steel: Durable material with excellent corrosion resistance.
• High-Stability Silicone Oil Filling: Provides stable sensing performance.
• 3× Range Overload Capacity: Can withstand overload up to 3 times the measurement range.
• Fast Response & Strong Interference Resistance: Enables quick response and reliable operation.

Dimension (Unit: mm)

Working Principle Diagram

This diffused silicon pressure sensor requires an external DC power supply and can be driven by either constant voltage or constant current. The power supply voltage is ≤10V. The internal schematic diagram of the sensor is shown below:

According to the diagram below, the external resistors can be adjusted according to the requirements of the downstream signal acquisition circuit. They can be used for zero adjustment, drive protection, and output voltage adjustment.

Interface Definition