Transistor mounting clamp assembly
US5439398A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 1992 |
| Grant date | Aug 8, 1995 |
| Priority date | — |
| Expiry date | Dec 10, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/10409
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A transistor mounting clamp assembly for ensuring reliable electrical connection of a power transistor electrical connector tab (typically the collector tab) to a metallized portion of an associated printed circuit board. The transistor mounting clamp assembly comprises a top and bottom clamp dimensioned for sandwiching therebetween the transistor tab. The clamp assembly uses a machine screw and associated Belleville washer for maintaining this urging relationship even when the components expand and contract. The bottom clamp preferably has a stepped region or other surface discontinuity for securing the connector tab thereto. The clamp assembly further comprises an extending tab which is secured to the top clamp and which has a second region for providing electrical connection to the metallized portion of the printed circuit board by soldering, or other means. The overall transistor mounting clamp is able to withstand thermal expansion and contraction associated with intermittent operation of the associated power transistor and is also able to make reliable electrical connection to associated tabs of matching network elements typically used in transistor amplifier applications ass…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.