Component description Turbo pressure sensor (51.27421–0128) 1 Output EDC Pin 36 EDC Pin 33 + 5 V 2 5 EDC Pin 13 3 4 Plug connection Function The pressure sensor element consists of an Si diaphragm which contains several piezo- resistive (pressure-sensitive) semiconductor resistors. The pressure to be measured “deflects” the sprung diaphragms. As a result, extended or compressed zones are created on the surface of the diaphragms. The action of these forces changes the electri- cal ratings of semiconductor resistor arrays arranged in these zones. These values are a measure for the pressure to be measured. Output curve at U S = 5 V U A [V] U A U S P 1 437,5 kPa 70 Max. permissible pressure:
600 kPa absolute Pressure kPa 19