Introduction: TYCO is located in Waltham Massachusetts, USA. It is a diversified production and service enterprise, and is the world's largest manufacturer and service provider of electrical and electronic components; Design, production, installation, and service providers of underwater communication systems; It is also the world's largest manufacturer, installer, and supplier of fire protection systems and electronic security services; It is also the largest manufacturer of flow control valves. In the fields of medical products, financing and leasing, plastics, and adhesives, Tyco also holds a dominant position. The company has business operations in over 100 countries and achieved a revenue of 40.2 billion US dollars in fiscal year 2004. TYCO (Tyco) relay is a general term for relays produced by Tyco International Limited. TYCO connectors: Considering the technological development and practical situation of connectors, TYCO connectors can be divided into the following categories (subcategories) based on their universality and relevant technical standards: ① low-frequency circular connectors; ② Rectangular connector; ③ Printed circuit connectors; ④ RF connector; ⑤ Fiber optic connector; TYCO official website: www.tyco.com.