PCB RJ logo

Discussion in 'General Electronics Chat' started by Robin Mitchell, Sep 26, 2016.

  1. Robin Mitchell

    Thread Starter Well-Known Member

    Oct 25, 2009
    732
    199
    Hi all,

    Many PCBs I have looked at have a backward R and J symbol. What does this mean?

    [​IMG]

    All the best.
    Robin
     
  2. RichardO

    Well-Known Member

    May 4, 2013
    1,231
    382
    It is a UL (Underwriters Laboratories) certification logo.



    [​IMG]
     
  3. wayneh

    Expert

    Sep 9, 2010
    12,101
    3,033
    See here the distinction with the UL mark. Component versus entire product.
     
    RichardO likes this.
  4. Robin Mitchell

    Thread Starter Well-Known Member

    Oct 25, 2009
    732
    199
    Rubbish that's an L and U!

    Thank, I always wondered what that was :D
     
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