4pins OR 6pins OEP1200

Discussion in 'General Electronics Chat' started by vinodquilon, Feb 11, 2010.

  1. vinodquilon

    Thread Starter Member

    Dec 24, 2009
    234
    0
    Why didn't the pin numbers follows sequential numbering like 1-2-3-4-5-6.
    I think 2 & 5 are taken as common center-taps,but OEP1200 have only 4 external pins.
     
  2. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    My guess is that the part is available in a center tapped primary and center tapped secondary and it was easier for the manufacturer to use the same package for both models. It was easier just to preserved the pin out assignments across the two similar packaged products.

    hgmjr
     
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