Equivalent Opto Isolator PS2521

Discussion in 'General Electronics Chat' started by jonhamil, Jan 8, 2012.

  1. jonhamil

    Thread Starter New Member

    Oct 9, 2011
    7
    0
    Hey there

    I would really appreciate some suggestions as to a suitable alternative to the PS2521 opto isolator? I have attached a datasheet.

    I have pulled a couple of these off a control board. It says "5E 2521 G" I am assuming that this is the same as the PS2521 part. It is situated on the board next to several TLP557 opto-isolators.

    Any ideas please??

    Many thanks in advance.

    Jonathan
     
  2. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    Is the opto in a 4-pin surface mount or through-hole package?

    hgmjr
     
  3. jimkeith

    Active Member

    Oct 26, 2011
    539
    99
    What makes this opto-coupler unique is its high input current rating (150mA) and CTR based upon a high current (100mA)
     
  4. jonhamil

    Thread Starter New Member

    Oct 9, 2011
    7
    0
    Hi there

    The existing device is a 4 pin DIP (Thru hole).

    Any ideas for a suitable replacement? Being in the UK, devices from rswww.com or farnell.co.uk or maplin are best .

    Many thanks again!

    Jonathan
     
  5. jimkeith

    Active Member

    Oct 26, 2011
    539
    99
  6. jonhamil

    Thread Starter New Member

    Oct 9, 2011
    7
    0
    Hi!

    In the end I was able to find some PS2521 on Mouser - they're on their way!

    Many thanks for your help.

    Jonathan
     
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