Electronics > Repair

How to remove transistor heatsink clamp

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technoviking:
I've got a motor controller that let out the smoke that I'd like to attempt to repair. The problem is that it is housed in an aluminium extrusion with the mosfets clipped to the housing and I have no real idea how to remove or re-install the clips.

I´ve seen guides online on how to do this for clips that have a little slot in them, but these don't have that.
If it's of any help the clips model number is MAX02H

technoviking:
For the curios this is where the smoke escaped. I'm taking any bets on what took out what, Capacitor vs NTC

jpanhalt:
The retainers look like they are simply held by spring compression between two narrow fins.  A little wiggling will remove them.

The bigger question is why do you want to remove them?  That is not where the problem was.  That disk shaped thing is probably some sort of protective element like a MOV (https://en.wikipedia.org/wiki/Varistor).

strawberry:
NTC inrush current limiting resistor.

xrunner:

--- Quote from: jpanhalt on September 26, 2021, 09:58:48 am ---The bigger question is why do you want to remove them?  That is not where the problem was. 

--- End quote ---

How is he going to repair the board (replace components) without removing it?  :-//

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