What side of this capacitor is negative and which is positive? (picture inside)

Discussion in 'General Electronics Chat' started by sofakng, Nov 7, 2007.

  1. sofakng

    sofakng Thread Starter Member

    Joined:
    Oct 30, 2007
    Messages:
    19
  2. jpitz31

    jpitz31 Active Member

    Joined:
    Oct 24, 2007
    Messages:
    37
    Location:
    Escondido, CA
    When in doubt, look at the data sheet.

    There is an image of the cap, with a (-) sign next to the black 1/4 moon mark on the cap.

    Thanks

    Joe
  3. Voltboy

    Voltboy Active Member

    Joined:
    Jan 10, 2007
    Messages:
    197
    Location:
    Ground
    Yeah, the datasheet tells it all. Apart of the black line (which is the negative side), you can see in the "outline drawing" which is the negative terminal.
  4. cheddy

    cheddy Active Member

    Joined:
    Oct 19, 2007
    Messages:
    87
    He's right the data sheet does say. Also the black line is the negative on every electrolytic capacitor I've ever seen.
  5. sofakng

    sofakng Thread Starter Member

    Joined:
    Oct 30, 2007
    Messages:
    19
    You guys are awesome, thanks!

    Also, a somewhat unrelated question: is super glue condutive? I just used a bunch of it to hold down a socket for a very simple hobby project, but the glue is connecting a couple of pins together...
  6. jpitz31

    jpitz31 Active Member

    Joined:
    Oct 24, 2007
    Messages:
    37
    Location:
    Escondido, CA
    It is not conductive, but I have used it to hold smd devices down while soldering. When heated the supper glue burns off a bit. But some good PCB cleaner will remove it.

    Thanks

    Joe
  7. beenthere

    beenthere AAC Fanatic!

    Joined:
    Apr 20, 2004
    Messages:
    15,815
    Location:
    Missouri, USA (GMT -6)
    Safety note: Super glue contains cyanide. Not at all healthy to inhale, especially as fumes while burning off a board. I don't have another suggestion about a glue to use, but super glue is a very bad idea.
  8. arthur92710

    arthur92710 Active Member

    Joined:
    Jun 25, 2007
    Messages:
    307
    Location:
    NY, USA
    cyanide will just kill you before you notice the effects of the lead in the solder and the zinc chloride in the solder paste. :)
  9. Voltboy

    Voltboy Active Member

    Joined:
    Jan 10, 2007
    Messages:
    197
    Location:
    Ground
    You could use hot glue, its very useful. I've used it in many projects.
Similar Threads
Forum Title Date
General Electronics Chat PLACEMENT OF AC BLACK&DECKER7190 TYPE 2 INSIDE WIRES Sep 1, 2014
General Electronics Chat Xbee antenna; outside box Aug 15, 2014
General Electronics Chat Voltage on negative side Jul 24, 2014
General Electronics Chat why windows are not considered as RTOS Jun 25, 2014
General Electronics Chat Microstrip lines on double sided pcb May 14, 2014

Share This Page