Terminals are electrically connected to one of the foundation's vitality, has a pivotal role in the electrical connection, Terminal design is an important factor in determining the quality of terminals, a number of basic common principles brief terminals under design considerations .
　　1, product standards: Terminal within the scope of the connector, so the design when the terminals to the reference standard IEC, UL, CSA, VDE, TU, GB and other international and domestic electrical connections, also refer to a number of industry standards, such as JB , GJB and so on. In China, GM terminals standard GB14048.7 / 8.
　　2, the choice of materials: properties of materials directly affects the performance of the product is the key to design. In general PA66, for example, which is what most manufacturers choose the most widely used plastic materials. The material better meet the UL94, V-0 flammability rating, Ningbo SUPU electron is as plastic material. In this case the design must meet the requirements CTI parameters directly affects the impact resistance of the final product can be passed voltage and aging tests and other tests. In accordance with UL regulations, you can use up to 25% recycled material and 75% of new material together sufficiently stirred mixed use, especially for some withstand high current and high voltage products, the use of recycled materials should be lower or not filling.