1. What is the voltage value at both ends of the series connected pptc component in the circuit?

2. What is the average current value of the circuit flowing through the pptc component under normal working conditions?

3. When a circuit experiences a load short circuit, how much will the fault current in the circuit increase, causing damage to the circuit or other components in the circuit? When the circuit load and fault current increase to 10 amperes, the circuit or components in the circuit are damaged, which affects the normal operation of the circuit. Therefore, it is necessary to quickly protect the circuit with pptc components, and the current value at this time is the limit current value.

4. What is the ambient temperature of the circuit? (Because pptc components belong to positive temperature coefficient thermistors and are affected by environmental temperature)

5. How long does the circuit work? (Is the circuit working continuously for a long time (more than 4 hours) or intermittently?)

2、 Location of use

1) The self recovery fuse is applied between the output end of the lithium-ion battery power supply of a tablet computer and the input end of the main control circuit power supply;

2) The self recovery fuse should be used between the control circuit and the USB serial data interface.

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