| 摘要 |
Provided is a positive temperature co-efficient PTC device in which a PTC element functions properly even when the PTC device is used in an environment in which solvent is present. The PTC device comprises: (1) a polymer PTC element and polymer PTC device comprising first and a second metal electrodes which are positioned on the main surfaces on both sides of the element; (2) leads connected to at least one metal electrode of the polymer PTC device; and (3) a ceramic package which has an open space which accommodates the polymer PTC device and the open space has at least one opening specifying the open space. The leads close the opening so that the polymer PTC device which is positioned in the open space is isolated from the environment surrounding the ceramic package. |
