Magicsmokemaker
- Feb 20, 2016
- 5
- Joined
- Feb 20, 2016
- Messages
- 5
Hi all my first post on any site ever! I am fixing a cheap Chinese power inverter 12v DC to 220~240AC it blew a MOSFET on the 240v output side. Now here's the problem the output MOSFETs are heatsinked directly to the aluminium case they are K15A50D by Toshiba in a 220f case i.e. the drain is insulated. I don't have any to hand and they are £10 each from ebay ! I want to swap all 4 output MOSFETs for cheaper alternatives which will be in 220 cases I.e. the drain is connected to the metal mounting tab. Is it safe to use some of that grey coloured rubbery sheet to insulate the MOSFETs from the case?