Roson Electronics Co., Ltd. was founded in 1994. Over 10 years efforts and technology accumulation, ROSON has grown a professional manufacturer of frequency products. Nowadays, Roson&＃039;s product line includes crystal resonators, oscillators, filters and ceramic resonators, filters, discriminators, traps, can offer through hole and SMD type product. The production ability per month could be 10KK pcs. ROSON focus all attention on offering high performance and the most cost effective crystals and oscillators. The product are abroad used in communication, PC and accessories, AV products, digital products, domestic electric appliances, electronic toys and etc. ROSON passed ISO9001 QUALITY SYSTEM CERTIFICATE in 1998. For meet the EU&＃039;s directive, RESTRICTION of the USE OF CERTAIN HAZARDOUS SUBSTANCE IN ELECTRICAL AND ELECTRONIC EQUIPMENT, ROSON began to follow completely the RoHS directive in May-2004. Until Nov-2004, all of the products had been certificated by SGS. ROSON products include: 1. Crystal resonators---available in through hole and SMD packaging. 2. Crystal Oscillators---available in through hole and SMD packaging. 3. Crystal filters 4. Ceramic resonators---available in through hole and SMD packaging. 5. Ceramic filters 6. SAW resonators 7. SAW filters