Different plated terminals should be selected according to different connectors and different needs. For equipment with high performance requirements, such as terminals for airbags, ABS, ECU, etc., gold-plated parts should be preferred to ensure safety and reliability, but due to cost considerations, partial gold-plated treatment can be selected under the premise of meeting performance requirements.
The specific selection principles are:
● Ensure that the terminals are reasonably matched with the selected connectors.
● Select the appropriate terminal for the wire diameter of the crimped wire.
● For the single-hole waterproof connector, select the terminal whose tail can be crimped to the waterproof plug.
● Ensure the reliability of the connection. When selecting terminals, ensure good contact with electrical devices and plug-ins, so as to minimize contact resistance and improve reliability. For example, surface contact is better than point contact, and pinhole type is better than leaf spring type. In the design, it is preferable to use a connector with a double spring compression structure (very low contact resistance).
● Impedance matching. Some signals have impedance matching requirements, especially RF signals, which have stricter impedance matching requirements. When the impedance is not matched, signal reflection will be caused, thereby affecting signal transmission. Therefore, when selecting a terminal, be sure to select a terminal with matching impedance.