dataseet comparision

Discussion in 'Homework Help' started by deepak007, May 15, 2008.

  1. deepak007

    Thread Starter Active Member

    Sep 30, 2007

    i need help with datasheet comparison. i need to use a KN 2222a for a high power voice transmitter circuit. but, that transistor is not available. so, my vendor told me to use 2N 2222. is 2N 2222 equivalent to KN 2222a? i have used 2N 2222a but the output power is less. i am enclosing the datasheets for the above two transistors. please tell me if they are similar.
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    what are the significant parameters? If you know them and have the data sheets, surely you can see if the devices are equivalent?
  3. Audioguru

    AAC Fanatic!

    Dec 20, 2007
    Both transistors have a wide range of current gain. Maybe one is low and the other is high. Maybe one has a much higher transition frequency than the other.
    Transistors with the same part number would have the same difference in performance.