Organic positive temperature coefficient thermistor

摘要

In an organic positive temperature coefficient thermistor first and second power supplying portions are arranged spaced apart from each other by a predetermined distance on a sheet made of a material exhibiting a positive temperature characteristic of resistance. A respective plurality of branch-shaped electrodes is connected to each of the first and second power supplying portions. The plurality of branch-shaped electrodes connected to each of the power supplying portions is arranged so as to extend toward the side of the other power supplying portion. The branch-shaped electrodes connected to each of the power supplying portions are arranged so as to be interdigitated with the branch-shaped electrodes connected to the other power supplying portion. The organic positive temperature coefficient thermistor is characterized in that at least one of the first and second power supplying portions is constituted by a plurality of power supplying electrodes which are insulated from each other. A plurality of branch-shaped electrodes is connected to each of the plurality of power supplying electrodes, and they are distributed along the power supplying electrodes with a predetermined spacing and with a predetermined ratio between the respective members of branch-shaped electrodes on each of the power supplying electrodes.