发明名称 |
LAMINATED PTC THERMISTOR ELEMENT |
摘要 |
A laminated PTC thermistor element includes: a ceramic substrate including a plurality of ceramic layers; a plurality of internal electrodes formed within the ceramic substrate; and external electrodes formed on the surface of the ceramic substrate, for providing electrical conduction to the internal electrodes. The ceramic substrate is 0.3 [µm] or more and 1.2 [µm] or less in average porcelain grain size. Furthermore, the relative density of the ceramic substrate has a lower limit of 70 [%], and an upper limit of -6.43d + 97.83 [%] when the average porcelain grain size is denoted by d. |
申请公布号 |
EP2879137(A4) |
申请公布日期 |
2015.12.02 |
申请号 |
EP20130823279 |
申请日期 |
2013.07.18 |
申请人 |
MURATA MANUFACTURING CO., LTD. |
发明人 |
AOTO WATARU;SAIGO YUMIN;KATSU HAYATO;NABIKA YASUHIRO |
分类号 |
H01C7/02;C04B35/468 |
主分类号 |
H01C7/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|