select the best replacement transistor

Discussion in 'General Electronics Chat' started by ahmed33, Feb 1, 2017.

  1. ahmed33

    Thread Starter New Member

    Jan 31, 2017
    3
    0
    hi there ;
    i have a circuit which includes some component are not available !
    for example 2sc1685 , 2sc2240
    is there a replacement in 2n series since it is common series ,how to select it ?

    i attached a table of datasheet
     
  2. crutschow

    Expert

    Mar 14, 2008
    20,225
    5,719
    How close a replacement you need depends upon its application in the circuit.
    What information do you have on that?
     
    ahmed33 likes this.
  3. ahmed33

    Thread Starter New Member

    Jan 31, 2017
    3
    0
    it is amplifier in a sound effect works on 9 to 4.5 volts
     
  4. dl324

    AAC Fanatic!

    Mar 30, 2015
    7,435
    1,761
    A schematic would be helpful so we can tell which parameters xare important.
     
  5. ahmed33

    Thread Starter New Member

    Jan 31, 2017
    3
    0
    i attached it
     
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