UL Stable PPTC Resettable Fuse , Polymer Positive Temperature Coefficient Thermistor
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Smaller Size Polymer PPTC Thermistor Used For Motor Overload And
Overheat Protection How does the Polymer-Resettable-Fuse effect work?
At normal operating temperatures, polyethylene tightly wraps the conductor in a crystalline structure, forming a low impedance conductive path as shown on the left,because of the low impedance, the current flowing through the PPTC component on the circuit generates little thermal energy which will not change the crystal structure of polyethylene. When the abnormal current occurs, the thermal energy generated on the conductor will change the polyethylene from crystalline to Amorphous, as shown on the right. In this case, the wrapped conductor will be separated by the expansion of polyethylene, leading to a rapid increase in impedance and limiting the abnormal current flowing through the PPTC component. After the abnormal current disappears, the conductor path will combine again into low impedance.
PTC Thermistor for Overload Over-current Protection 265V/250V Series Data
Features 1 Easy to set up with safety and stability. 2 Smaller size that saves board space and cost. 3 Resettable circuit protection. 4 Fast time-to-trip. 5 Low resistance. 6 Lead-free and compliant with the European Union RoHS Directive. Applications: 1). Overcurrent and overtemperature protection of automotive electronics 2). Hard disk drives Conventional product electrical performance parameters
APPLICATION:
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Product Tags: UL PPTC Resettable Fuse Stable PPTC Resettable Fuse Polymer Positive Temperature Coefficient Thermistor |
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UL Stable PPTC Resettable Fuse , Polymer Positive Temperature Coefficient Thermistor |