Burned power FET on Ramps 1.4 Board
Posté : 08 févr. 2018 21:15
Hi,
i want to share my experience with this.
Still in the test Phase of my i3-R Printer the power Fet for the headted bed burned. I was heating only to 70 Degrees.
Before i decided to order a new board, i browsed the web and found the following site
http://forums.reprap.org/read.php?219,792911
The important lines are "And replacing a mosfet in a TO220 package by a better one isn't difficult. Typical good choices are IRLB8743 and IRLB3036. "
I ordered the IRLB3036 from Conrad Electronis.
https://www.conrad.at/de/Search.html?se ... 1Fc1202469
Not only did i put the new FET but i also put a second one on the other side of the board in parallel. Insolating material has to be put to make sure that no short can happen.
Now the bed is heating to 100 Degress withot Problems, the FETs not even getting warm
cheers
Ernst
i want to share my experience with this.
Still in the test Phase of my i3-R Printer the power Fet for the headted bed burned. I was heating only to 70 Degrees.
Before i decided to order a new board, i browsed the web and found the following site
http://forums.reprap.org/read.php?219,792911
The important lines are "And replacing a mosfet in a TO220 package by a better one isn't difficult. Typical good choices are IRLB8743 and IRLB3036. "
I ordered the IRLB3036 from Conrad Electronis.
https://www.conrad.at/de/Search.html?se ... 1Fc1202469
Not only did i put the new FET but i also put a second one on the other side of the board in parallel. Insolating material has to be put to make sure that no short can happen.
Now the bed is heating to 100 Degress withot Problems, the FETs not even getting warm
cheers
Ernst