Ptc Resettable Fuse Symbol

Polymer ptc thermistors made of a special plastic are also in this second group often used as resettable fuses.

Ptc resettable fuse symbol. This type of ptc thermistors is widely used in ptc heaters sensors etc. Current ratings of up to a few tens of amperes and voltage ratings of up to few tens of volts are feasible. Package size varies from 0402 to 3425 while hold current ranges from 50ma to 7 0a. Unable to find component.

Products marked with this symbol are currently available although not recommended for new designs. Technical library for brochures and technical papers. Use scheme it s comprehensive electronic symbol library and an integrated digi key component catalog to design and share electronic circuit diagrams. The ceramic ptc thermistor has similar behavior but the resistance variation is not as fast.

Fuses are devices containing a small piece of special wire that melts when the intensity of the current flowing through it for a certain period of time exceeds a set value thus protecting the rest of the electrical circuit overloads. Thus the ptc fuse symbol is as already answered. The second group is the switching type ptc thermistor. A thermistor is a type of resistor whose resistance is dependent on temperature more so than in standard resistors the word is a combination of thermal and resistor thermistors are widely used as inrush current limiters temperature sensors negative temperature coefficient or ntc type typically self resetting overcurrent protectors and self regulating heating elements positive.

The lines at the end of the diagonal appear to be used to indicate achieving an end state. Conflict mineral source reporting for multifuse products. Resettable fuses ceramic ptc. View all littelfuse catalogs and design guides.

The switching type ptc thermistor has a highly nonlinear resistance temperature curve. A resettable fuse or polymeric positive temperature coefficient device pptc is a passive electronic component used to protect against overcurrent faults in electronic circuits the device is also known as a multifuse or polyfuse or polyswitch they are similar in function to ptc thermistors in certain situations but operate on mechanical changes instead of charge carrier effects in semiconductors. Product index circuit protection ptc resettable fuses ptc resettable fuses. Hence the other answer has a comment pointing out the difference between a ptc thermistor and ptc fuse symbol.

Fuses and electrical protection symbols. Surface mount resettable ptc devices provide overcurrent protection for applications where space is at a premium and resettable protection is desired. The ptc resettable fuse is not meant for high power.