Surface-mounted over-current protection device
US7701322B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2006 |
| Grant date | Apr 20, 2010 |
| Priority date | — |
| Expiry date | Apr 1, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01C1/1406
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A surface-mounted over-current protection device with positive temperature coefficient (PTC) behavior is disclosed. The surface-mounted over-current protection device comprises a first metal foil, a second metal foil corresponding to the first metal foil, a PTC material layer stacked between the first metal foil and the second metal foil, a first metal electrode, a first metal conductor electrically connecting the first metal foil to the first metal electrode, a second metal electrode corresponding to the first metal electrode, a second metal conductor electrically connecting the second metal foil to the second metal electrode, and at least one insulated layer to electrically insulate the first metal electrode from the second metal electrode. The surface-mounted over-current protection device, at 25° C., indicates that a hold current thereof divided by the product of a covered area thereof and the number of the conductive composite module is at least 0.16 A/mm2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.