Once, for one of its project need a powerful MOSFET. Commuting was a large current of about 500 Amperes. And then came the idea to make a separate transistor, modular, composite.
Small MOSFETs was to gather a powerful one. The benefit of these transistors are well linked and work great, if you connect them in parallel to each other.
- The transistor 50N06 – 12 pieces – http://ali.pub/4wd5yi
- Adhesive for metals, cold welding, http://ali.pub/4wd69e
- Epoxy resin.
- Textolite Board for mounting.
- Flux and solder.
The process of fabrication power transistor with their hands
Produce charge in any way.
Vitruviem in chloride of iron and then wash well.
Zapevaet technological jumper Ludim and tracks charges.
Zapevaet field-effect transistors. In this composite transistor 12 is applied MOSFETs series 50N06 in the case TO-252. All the parts are connected in parallel without any correction circuits.
Contacts are made from thick copper wire.
Temporarily before soldering, you can connect the thick wire thin, then remove.
Make the PCB from flux.
Sizing the base of the contacts with epoxy.
Made of thick aluminium sheet cut heat-conducting substrate for the transistor.
Drill a hole for future mounting to the radiator.
“Plant” cost for a thermally conductive adhesive cold welding.
To give full visibility to the transistor, will make the case for the pouring out of plexiglass.
Mix epoxy resin in the ratio indicated on the instructions.
Fill in the form. and leave to dry.
Remove the casing from Plexiglas.
Almost ready to do.
It remains to mark. Do it with a laser.
Paint fill the grooves.
Powerful MOSFET transistor ready to go.