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The sensor is housed in a ceramic package with temperature resistance and operates over a temperature range of -40 to +125 ° C. It supports the vehicle environment and has temperature-insensitive pressure sensing characteristics. The detection pressure range is from 100 to 500 kPa. When the pressure is 100 kPa, the standard value of the capacitor is 7 pF, the standard value of the capacitor at a pressure of 500 kPa is 12.6 pF, and the pressure change sensitivity is 1.8 (500 kPa/100 kPa).
Samples are scheduled to begin in October 2007. The sample price is 1,000 yen. Mass production is scheduled to begin in August 2008. The production scale is expected to be 1 million per month. The development and production of this series are handled by the Nagaoka Plant, the electromagnetic components business unit of Nagaoka City, Niigata Prefecture.
Alps Electric has released a new series of pressure sensor "HSPC" series for detecting absolute pressures such as tire pressure, blood pressure and air pressure. The working principle is to use a bending deformation of a diaphragm that also serves as an electrode to read a change in capacitance generated between the diaphragm and the fixed electrode, thereby detecting a slight pressure change. The current consumption is microampere. The external dimensions are 4.8 mm × 4.8 mm × 1.8 mm. Mainly used for tire pressure monitoring system (TPMS, to improve vehicle safety performance, the United States requires all vehicles listed after September 2007 must be installed) portable blood pressure tester and small battery-driven barometer.