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Sino-Tech International Holdings Limited is one controlled corporation of Semtech Electronics Limited,which was founded in 1980s.Semtech focus much attention on the discrete semiconductor and electronic components.Their sales network all over the world,especially in India, Russia, Beijing, Korea, Japan, Shanghai, Taiwan, Thailand, Malaysia, Singapore and etc. Smtech's product line covers the diodes,transistor and capacitors.They can supply Fast Recovery Rectifiers, High Efficiency Rectifiers, Switching Diodes, Schottky Barrier Diodes, Variable Capacitance Diodes, Trigger Diodes, High Frequency Diodes , High Voltage Switching Diodes, Bridge Rectifiers, Darlington Transistors, Power Transistors, Digital Transistors, NPN Small Signal Transistors, PNP Small Signal Transistors and etc. In the early 1990s, Smtech established its own brand - "Sino-Tech" for Diode and Transistor in the discrete electronic components market.They have received ISO9001:2008, ISO/TS16949:2002, ISO14001:2004, BS-OHSAS18001:2007, IECQ QC 080000 certificationS. The corporate culture is reform,and their mission is providing the best service to the customers.Semtech adhere to the vast number of quality service to return the new and old customers with good reputation to win the market.