FirstWatt F5 Turbo V3, Инструкция по сборке, Страница: 3 / 15

F5 Turbo Assembly Instruction Version 2 Page 3
j. D1 – D5 and D7 are MUR3020W locations.
k. When mounting the mosfet and MUR3020W, make sure an insulation sheet is used to
isolated the body from the heat sink.
l. The drilling dimensions of the heat sink are provided at the end of this document. A heat
sink size of 200mm x 400mm is used as an example.
m. Insert the pcb mounting screws (total 4) from top and screw in a 10mm spacer post at the
bottom of the pcb.
n. When mounting the mosfet, fix them onto the heat sink as shown. Bends the leads about
90 deg upwards. Put the PCB on top and then insert all the leads (total 18) into the pad
holes of the pcb. It will take a bit time to do so. Press down the pcb and then tighten the 4
PCB screws. Tighten the screws until they are in position.
o. Loosen the mosfet mounting screws a bit so that they will release some of the force on the
leads. Tighten all the screws of the mosfets.
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