From the standpoint of the conductive performance of the plug, it is best to choose a self-locking plug or a self-expanding plug. These two plugs are in close contact with the inner wall of the jack, have low contact resistance, are not easy to generate heat, and are reliable for insertion and extraction.
However, sometimes it is necessary to consider the convenience and economy of using the test plug. The cost of the previous two plugs is relatively high, and the versatility is not strong. It is necessary to manually tighten the special screws when inserting and removing.
The elastic plug is slightly inferior in electrical performance compared with the previous two test plugs, but it is more versatile, easy to insert and remove, and has better stability. The second is the lantern plug / drum reed plug, again the lotus plug, and finally the cross flower plug. The evaluation index of the electrical conductivity is the contact resistance. The smaller the contact resistance, the better the quality of the plug. But the selected banana plug is sometimes noisy
The difference between drum plug / lotus plug / cross flower plug and banana plug:
Drum spring banana plugs are also called lantern banana plugs, as well as lotus plugs, cross plugs, spring plugs, etc., collectively called banana plugs. Banana plug is a popular name for people to test plug. The electrical measurement test plug is generally composed of the plug body and the plug spring. According to the shape of the spring, different types of test plugs have different names (commonly known). Under general conditions, a banana plug is selected under high-current and high-current operating conditions, and a common signal is selected for power. Drum spring plug.
