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ic identification needed

Discussion in 'Electronic Components' started by [email protected], May 9, 2007.

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  1. Guest

    Hello,

    Does anyone know manufacturer/type of this small ic, it is used with a
    (small permanent) magnet to detect open/closed of lid of machine. It
    is cracked and doesn't work anymore. 3 wires are connected. Please
    have a look at:
    http://145.18.160.21/612.jpg
    The first character appears to be a 'A' and also the number 612 seems
    complete. I looked at magnetic switches/sensors and hall effect ic's
    but found nothing appropriate. But if anyone recognizes the brand we
    are a step further!

    Thanks, Mark
     
  2. Check out Allegro.


    Best regards,
    Spehro Pefhany
     
  3. Guest

    Check out Allegro.
    Yeah, you must be right. I already had a look at their website, and
    they do have a 612, a ATS612LSB/G, but physical appearance is very
    different and 4 pins instead of three. But I will crawl through the
    archives now I know the brand for sure (but didn't find it yet)

    Thanks, Mark
     
  4. Eeyore

    Eeyore Guest

    It looks to be a hall effect sensor from your description. I expect you could
    replace it with any generic equivalent. The pins will be power, ground and
    output (possibly open collector ). You can determine if it needs an open
    collector output by examining the circuitry it feeds.

    Graham
     

  5. If the product is more than a few years old it might be obsolete, and
    they probably have a functional replacement.


    Best regards,
    Spehro Pefhany
     
  6. Franc Zabkar

    Franc Zabkar Guest

    FWIW, www.usbid.com have references to an A44E part made by Allegro.

    The "E" suffix appears to designate an operating temperature range of
    -40°C to +85°C.

    Allegro have an A3144E part, but I don't know if it is anything like
    yours.

    This site looks interesting, but I don't understand Chinese:
    http://china.tradeprince.com/catalogs/1403/3581/4619/200612/15/22464.html

    It has several Hall effect sensors including the A44E, A3144E, and
    WY44EUA.

    - Franc Zabkar
     
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