NPN specs in this circuit... critical?

Discussion in 'The Projects Forum' started by s_mack, Jun 11, 2015.

  1. s_mack

    Thread Starter Member

    Dec 17, 2011
    187
    5
    soft_switch.jpg
    In this partial schematic, I'm trying to figure out what the intention was with Q6 so I can choose appropriate specifications. Am I right in saying that this transistor itself isn't handling much current? That the p-fet above is doing the heavy lifting? So pretty much any NPN should fit the bill? Or am I way off?

    The battery is 12.6V max and the max load is 0.5A

    Thanks.
     
  2. #12

    Expert

    Nov 30, 2010
    16,252
    6,751
    You're right. It's only a gate controller. 86 microamps.
     
  3. s_mack

    Thread Starter Member

    Dec 17, 2011
    187
    5
    Thanks!
     
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