Identify this manufacturer?

Discussion in 'General Electronics Chat' started by Cammack, Sep 12, 2013.

  1. Cammack

    Thread Starter New Member

    Feb 19, 2013
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    Hello, I'm trying to nail down exactly what replacement part I need -

    The device is a TVS diode, marked 1.5KE47CA (also marked 1014, but I was thinking this is a batch ID or something?). It's purpose is for surge suppression on a solenoid coil. The solenoid is a safety critical item, so I need to be sure to use the correct part.

    I can easily find Fairchild, ST, Multicomp, and Littlefuse devices that seem to match, but ideally I'd like to find the same manufacturer and compare the specs before settling on a replacement.

    The attached IS NOT a photo of the part, but shows the same manufacturer logo as on the one I'm trying to identify, anybody know who this is?

    Or maybe someone can alleviate my concerns about picking the right one, these are the five I've found:
    http://uk.farnell.com/fairchild-semiconductor/1-5ke47ca/diode-tvs-bidirectional/dp/1651616
    http://uk.farnell.com/stmicroelectronics/1-5ke47carl/transil-1500w-47v-bidir-do-201/dp/1749319
    http://uk.farnell.com/multicomp/1-5ke47ca/tvs-diode-23-2a-64-8v-bidirectional/dp/1849204
    http://uk.farnell.com/multicomp/1-5ke47ca/diode-tvs-47v-1500w/dp/9565639
    http://uk.farnell.com/littelfuse/1-5ke47ca/tvs-diode-1-5kw-47v-do-201/dp/1681012
     
  2. #12

    Expert

    Nov 30, 2010
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    The 1.5KE series is pretty standard stuff, but as long as you said, "safety critical" I refuse to comment.
     
  3. praondevou

    AAC Fanatic!

    Jul 9, 2011
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  4. Cammack

    Thread Starter New Member

    Feb 19, 2013
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    My feelings precisely, I'd usually just go with what was available at the lowest price, but considering the application I really want to find out who makes this particular TVS and match their spec exactly. Maybe even get the very manufacturer's components.
     
  5. MaxHeadRoom

    Expert

    Jul 18, 2013
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    Preaondevou beat me to it, but as the list shows, most of those manuf have been taken over or no longer in existence, so who knows if the exact same spec is used for the same part number under the new Co.?
    Max.
     
  6. Cammack

    Thread Starter New Member

    Feb 19, 2013
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    The attached is the very one this time, and I can see the G and S standing out now that I know what I'm looking at, thanks praondevou!

    I understand that manufacturers can change their specs on a whim, especially through a takeover, but I'll be happy enough to go with the current Vishay ones in place of the existing, it shouldn't be too far different.

    The Vishay datasheet lists part numbers ending A, but not CA, anyone know the difference? Bi- vs uni-directional?
    http://www.vishay.com/docs/88301/15ke.pdf
     
  7. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,548
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    Job to see from the one in your Pic, but transorbs typically come with one band for Uni-dir and a band each end for bi-dir.
    I just noticed, for Vishay, the bi-dir is denoted by NO band.
    Max.
     
  8. Cammack

    Thread Starter New Member

    Feb 19, 2013
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    Thank you MaxHeadRoom, I also just noticed the sheet states "For bi-directional types, use CA suffix"...
     
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