Tiantian IC (ttic.cc) is a Chinese electronic components marketplace and information platform connecting buyers with suppliers, distributors, and agents. The site focuses on fast component quotations and listings for in-stock products, helping users search for parts, compare prices, and find potential sources. Its catalogue spans a broad range of electronic components, including integrated circuits, resistors, capacitors, inductors, semiconductors, LEDs, connectors, relays, sensors, transformers, switches, and related devices. Users can also access IC datasheets and PDF materials, browse brand and product information, and search by model number.

For procurement, Tiantian IC provides tools to publish purchasing requests, view supplier offers, and arrange BOM matching. Supplier-facing features include posting inventory and sales listings, managing company profiles, and publishing business news. The platform also offers membership and advertising services, alongside mobile access through its dedicated mobile website. With searchable product categories, market listings, and procurement resources in one place, Tiantian IC serves as an online resource for businesses seeking electronic components and suppliers in China.