The gas discharge tube SC1812-90CSMD model is commonly used for surge primary protection at high speed data transmission ports, due to its advantages: surge current 2KA (8/20μs), electrode capacitance less than 1pF, and DC breakdown voltage of 90V±20%.
The ceramic gas discharge tube (GDT) SC1812-90CSMD, launched by SOCAY Electronics, adopts square design of Gas discharge tube body to provide high reliability and high surge flow, and its square design is more convenient for SMT operation. RoHS standard, small package size, suitable for limited board space applications.
The SC1812-90CSMD  gas discharge tube is usually used for surge primary protection at high-speed data transmission ports. Due to its advantages, the surge current is 2KA (8/20us), the electrode capacitance is less than 1pF, and the DC breakdown voltage is 90V±20%. Other parameters are shown in the figure below: 

SC1812-90CSMD is widely used in the field of industrial surge protection. 50% of the products in the field of industrial application need to do surge protection. It is suitable for surge protection of signal ports such as RS485, RS232, 100 Mbit/s network, Gigabit network, 4G, GPS, and low voltage DC power ports such as DC5V, DC12V, DC24V, and DC48V. SOCAY Electronics can provide customers with quality solutions for different product port protection levels.