Surface mounting type chip capacitor
US5420748A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 25, 1994 |
| Grant date | May 30, 1995 |
| Priority date | — |
| Expiry date | Mar 25, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G9/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention discloses an upstanding surface mounting type electrolytic chip capacitor. The conventional capacitor has an asymmetrical mass distribution, and oscillations occur, with the result that an automatic surface mounting becomes difficult. The present invention provides upward projections along the edges of the cover portion of the holder, thereby minimizing the settling instability, and forming a plurality of soldering gas discharge and lead guide slots. Further, an annular groove is formed on the bottom of the cover portion and along the upper circumference of the capacitor, so that a short-circuit preventing step should be formed, and that the coupling between the capacitor and the holder should be reinforced. Accordingly, the lead drawing direction does not have to be considered, and the mass distribution of the capacitor becomes symmetrical. Therefore, when the surface mounting type chip capacitor is dropped from a suction-holding means onto a circuit board, the capacitor is settled at the exact position, thereby preventing the positional deviations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.