What is the relationship between the current of IH and the current of it, which seems to be familiar to some engineers, but because of the small white? I just can‘t figure it out. Take this opportunity, Shenzhen intermediate people tage electron to explain the thermistor to maintain current IH and operating current it? This problem! Hope to be helpful to everyone!
IH is the maintenance of the specified external conditions can be passed through the polymer thermistor will not cause its action (into a high resistance state of the circuit breaker) of the maximum stable current. The action current it is the minimum stable current which can cause the action of the polymer thermistor under the specified conditions.
At the same time, the thermistor can not show the same situation in different situations, which mainly include: ambient temperature, installation, thermal resistance, etc.. Therefore, the thermistor may adhere to a low resistance state, may soon move, or may be a long time before the action.
The current value between IH and it can be expressed in a region that is related to the switching state of the thermistor, but the current range cannot be accurately predicted. If the current is high enough, the thermistor or may maintain a low resistance state and keep the low current or may be transformed into a high resistance state, depending on the initial resistance, thermal resistance of external environment and assembly conditions.
In general, we can call this state unstable. Popular point is that the thermistor may be protected may not be protected, at least its protection time will be longer. Good today to explain so far, the thermistor and other electronic components to protect online friends can not understand the technical personnel to consult our online electronic official website of the tage!