Product features            ① It adopts Al2O3 ceramic substrate, which has excellent thermal conductivity and high reliability;            ② It is made by thick film technology, with high integration, consistent performance index, good stability and wide working temperature range;            ③ Meet the requirements of EU ROHS directive.            Application scope            This series of ceramic compensation circuit board has excellent compensation effect on the dispersion of diffused silicon pressure core and the imbalance of bridge resistance. The pressure transmitter, remote pressure gauge and liquid level gauge assembled by the pressure core made of this ceramic compensation board can be widely used in the pressure automatic monitoring system of aerospace, petrochemical, electric power, water supply, etc.            Electrical parameters            ① Resistance accuracy: ≤± 1%            ② Temperature coefficient of resistance: ≤ 100ppm            ④ Resistance range: 1 Ω ~ 100m Ω            Environmental parameters            ① Atmospheric pressure: 86kpa ~ 106kpa            ② Working temperature range: - 40 ℃ ~ 100 ℃