The Shenzhen Shangdingxin Tech Co., Ltd, is a well-known integrated electricity (IC) dealer. Our company is the collection of the research and development, production, and we are the general agency of Din-Tek Semiconductor, specialize in power management of mosfet, diodes and so on. Our products are widely applied in electric appliance, such as liquid crystal, sound, electromagnetic oven, water heater, power source, battery charger etc.