We, Jinan Jingheng Co.Ltd are one of the biggest manufacturers of semiconductor chips and finished products in mainland China. Our JF-brand Schottky rectifier diodes and DB series are of the finest quality, and that's why we have successful partnerships with telecommunication and electronic goods suppliers worldwide. They include Philips, Osram, Alcatel, Fujitsu and Hitachi. Our R&D Team During the past 45 years, we have filled orders for mainland China's defense ministry. Our 56-member R&D team uses this experience to continually enhance our technological knowledge. They develop new innovative products every six to 12 months. And, we have a joint venture with APIC Yamada Corporation, which produces high-tech products such as semiconductor devices, IC lead frames and more. Our Production Facilities Our ISO 9001:2000-certified operations produce up to 100 million Schottky diodes and 70 million DIACs every month. We also welcome orders for as few as 50,000 units. ITS and SGS certify that our products are free of toxic chemical elements - including lead, chromium and PBBS - so you can order from us with confidence. We deliver your standard orders in just five days, and process and ship OEM orders within 30. Contact Us Today Contact one of our 17 trade specialists today to learn more about our products and services. They will answer your inquiry in 24 hours.