Tefonix Company Profile     Established in 2005, Tefonix International Co. serves as a fabless semiconductor company dedicating in thyristor diode components. The core product concept “thyristor diode” leads us to SIDAC and SPD from 2005 and go upstream for SPD chips business in 2008. Tefonix SIDAC is a silicon bilateral voltage triggered switch that performs better power-handling function than standard diacs. It operates directly from the AC mains and can be used in all kinds of pulse generating circuits. In 2006 we launched K090 and K300 used in comparatively low and high breakover voltage. The SIDACs especially used in HPSV and HID are announced in the same year. Tefonix SPD, or called Sidactor-type protector, Transient Voltage Surge Suppressor, ensures you to maintain better surge protection ability. It is widely used in Telecom products, data line and security systems etc. Our T0080 and T0300 are able to meet the demand in low breakover voltage. Further more, clients are freely to choose either component or chips from us depending on their needs. Tefonix has its experienced team in the field over fifteen years. We have the ability to tell client's requirements and provide the best solution promptly. In addition, we offer the tailor-made service as per different designs from customer's end. For details, please visit “Product” or “Contact us"

Sigma company Profile     Sigma Systems was established in 1997. supplying computer memory peripheral as the main products in the very beginning. Due to increasing demand from customers and the different market trend, we gradually expand our product portfolio and business scope. Now, Sigma Systems has become a professional computer peripheral and electronic products manufacturer and trading company offerring procurement service to our customers. With the devotion and efforts made by the experienced management team, Sigma has significant growth every year, and continuously provides the state-of-the-art products with excellent quality, and flexible services. Committed to continuous improvements in both our products and services, SIGMA attempts to deliver reliable and cost effective data storage solutions, computer peripheral and also aims to offer best quality and the most professional services for OEM/ODM project. Welcome to join us if you are looking for a good supplier in Asia.