WFSensor WF5803F 20BA L8 DT MEMS Gauge Pressure Sensor - LGA-6 (6.2×6.8 mm), I2C/SPI, 30-2000 kPa

This WF5803F sensor measures gauge pressure, which is the pressure relative to the ambient atmospheric pressure. An absolute pressure sensor measures pressure relative to a perfect vacuum. Use gauge pressure for applications like tire pressure, HVAC duct pressure, or pump output where you need to know the pressure above or below atmospheric conditions.

The interface is typically selected via hardware configuration pins on the sensor module or by the specific commands sent by your microcontroller. Consult the sensor's datasheet for the pinout and protocol selection details. I2C is often preferred for simpler wiring with fewer lines, while SPI can offer higher data transfer speeds.

The sensor operates from a 1.8V to 3.6V DC supply. The exact current consumption depends on the measurement rate and active communication mode; you must refer to the official datasheet for detailed electrical characteristics to properly size your power supply and regulator.

While the sensing element is a MEMS piezoresistive chip, the standard LGA package is not inherently sealed for direct liquid immersion. For liquid pressure applications, the sensor must be protected by a compatible media-isolation diaphragm or seal to prevent damage or corrosion to the silicon die and bond wires.

The sensor is factory calibrated, providing digital output values that correspond directly to applied pressure. For mounting, the LGA-6 package is designed for surface-mount technology (SMT) assembly onto a PCB. Proper solder paste stenciling and reflow soldering processes must be followed as per the package's land pattern guidelines in the datasheet.