1. When the film thickness of the pin and socket connector increases, the accompanying resistance will rapidly increase, making the film a poor conductor. However, the film of the pin and socket connector undergoes mechanical damage under high contact pressure or high current under high voltage. Therefore, the use of pin and socket connectors is not suitable for increasing the film thickness.

2. The conductor resistance indicator of a pin and socket connector is contact resistance, which basically includes both contact resistance and contact conductor resistance. In addition, due to the small conductor resistance, the conductor resistance in the circuit is referred to as contact resistance.

3. In the small signal circuit of the exhaust pin and exhaust female connector, please note the requirements under which the given contact resistance specifications are measured. Due to the adhesion of oxide layers, oil stains, and other debris on the contact surfaces of the exhaust pin and exhaust female connector, a film resistance may form on the two contactor surfaces, causing damage to the exhaust pin.