Self Recovery Fuse Specification, Must Understand

时间： 2023-12-02 来源：XC News

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Each type of circuit protection component has specifications, and Self recovery fuses are no exception. So, what do you think when holding a self-healing fuse specification book? To put it bluntly, when reading the specifications, the main focus is on the parameters and the meanings they represent:

I hold: Maintain current

I trip: The maximum action time under the specified current;

V max: Maximum voltage that can be withstood

I max: Maximum current that can be withstood

P d: Stable power consumption in high resistance state

R: Zero power resistance measured at a certain temperature

R 1max: The maximum resistance value measured at room temperature after one hour of action or soldering back

Environmental temperature: The temperature of the still air around PTC

Maximum working environment temperature: The highest ambient temperature for PTC safe operation

Fig.1

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