<p>So during one of my initial experiments I accidentally blew up one of my capacitors. Everything else works on the board except the motor control with the blown capacitor so I'm going to replace it. Now I know it's an SMD and its capacitance is 47 µF, I'm going to assume that the &quot;H&quot; marks it as a 50 VDC on its voltage rating and it has a diameter of 6.3 mm as measured with my caliper. I can't find anything that read the exact same as what is on the capacitor shown, does that matter or does only the capacitance and voltage rating matter? [assuming my idea of the voltage rating being 50 VDC is correct]</p>
<p><a href="https://i.sstatic.net/dnx8I.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/dnx8I.jpg" alt="enter image description here" /></a></p>

CC BY-SA 4.0
2020-09-24T06:35:35.410Z
Wouldn't this question attract more attention when posted on EE.SE?
0scar
CC BY-SA 4.0
2020-09-24T07:26:13.643Z
What did you do to blow that cap? It seems likely that anything you could do to blow a cap would damage other components also.
DoxyLover
CC BY-SA 4.0
2020-09-25T07:05:22.617Z
I put 33 volts through my board like a dummy and it blew out the capacitor for the x controller and fried the motor control but that's an easy replacement as I have extra motor controllers. Only the x motor controller was affected by this overload. I checked all the other components with my voltmeter and everything else reads normal.
LDF
CC BY-SA 4.0
2020-09-30T11:43:30.427Z
That capacitor is in parallel with all of the other motor capacitors. I think it is unlikely to be the culprit for that particular motor driver not working. Also, how do you blow up a 50V rated capacitor with 33V?
Tom van der Zanden
<diy-3d-printer><electronics><repair><flashforge-creator>
Identifying and Replacing Capacitor
LDF
# Identifying and Replacing Capacitor

(Asked by: username_0 on 2020-09-24)

So during one of my initial experiments I accidentally blew up one of my capacitors. Everything else works on the board except the motor control with the blown capacitor so I'm going to replace it. Now I know it's an SMD and its capacitance is 47 µF, I'm going to assume that the "H" marks it as a 50 VDC on its voltage rating and it has a diameter of 6.3 mm as measured with my caliper. I can't find anything that read the exact same as what is on the capacitor shown, does that matter or does only the capacitance and voltage rating matter? [assuming my idea of the voltage rating being 50 VDC is correct]

[![enter image description here](https://i.sstatic.net/dnx8I.jpg)](https://i.sstatic.net/dnx8I.jpg)

**Tags:** diy-3d-printer, electronics, repair, flashforge-creator

> **Comments:**
> **username_1**: Wouldn't this question attract more attention when posted on EE.SE?  
> **username_2**: What did you do to blow that cap? It seems likely that anything you could do to blow a cap would damage other components also.  
> **username_0**: I put 33 volts through my board like a dummy and it blew out the capacitor for the x controller and fried the motor control but that's an easy replacement as I have extra motor controllers. Only the x motor controller was affected by this overload. I checked all the other components with my voltmeter and everything else reads normal.  
> **username_3**: That capacitor is in parallel with all of the other motor capacitors. I think it is unlikely to be the culprit for that particular motor driver not working. Also, how do you blow up a 50V rated capacitor with 33V?  

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## 0 answers

