(Topic ID: 323015)

How is this possible? - TIP102 issue

By ALY

1 year ago


Topic Heartbeat

Topic Stats

  • 16 posts
  • 7 Pinsiders participating
  • Latest reply 1 year ago by arolden
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    #13 1 year ago

    Replace the TIP102 as well as the predriving transistor before it, and the diode. My bet is that the predriver transistor or the diode is failing under load. It probably works on BR because the lock coil is less powerful than the plunger coil on T2.

    #16 1 year ago
    Quoted from ALY:

    Ok, I will try this too the next time.

    I was thinking in this direction and I hoped someone would bring this up, especially because I always replace just the TIP102 and it always worked. Let's say in about 5 cases like those I had before.
    Could it really be that the predriver plus the driver (TIP102) act in this way to work for lower power coils but not for higher power coils? Anyone had this exact case before?

    The easiest way to confirm that they can act in this way is to replace them and see what happens

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