Ptc Fuse Schematic Symbol. You can see the fuse in series with the lamp on the right. PTC thermistor circuit symbol As seen the circuit symbol utilises the characters t to give an indication of the positive temperature coefficient.
The circuit diagram below shows an example of an inrush current limiter ICL circuit in which a PTC thermistor and a thyristor or a mechanical relay are used in combination. All BMW BMW fuse symbols meaning and guide info diagrams provided on this site are provided for general information purpose only. An example circuit with a fuse is shown below.
A resettable fuse or polymeric positive temperature coefficient device PPTC is a passive electronic component used to protect against overcurrent faults in electronic circuitsThe device is also known as a multifuse or polyfuse or polyswitchThey are similar in function to PTC thermistors in certain situations but operate on mechanical changes instead of charge carrier effects in semiconductors.
A thermal fuse is a temperature sensitive switch. The symbol for a thermal fuse used in any electrical circuit diagram. The circuit diagram below shows an example of an inrush current limiter ICL circuit in which a PTC thermistor and a thyristor or a mechanical relay are used in combination. The type of response depends on whether the device is a ceramic fuse or a polymeric fuse.
