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Thread: Availability of Components of Sproggy's Power Supply

  1. #1
    Maximum Bitrate Raas's Avatar
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    Unhappy Availability of Components of Sproggy's Power Supply

    Hi All,

    As I have putted my idea to make a Form-Factor ATX Power Supply that runs of DC into the fridge untill I have some more knowledge to make/design something like this.

    I have some questions about the availability of some of the components as used in the sproggy power supply.

    I want to make the mk 2.5 (will have to make some powergood later, as the pcb is Ready, I just have to put in the components and solder it together)
    And I've checked for the availability of all parts used..
    And I can get everything listed on the parts list except:

    • [b]MAX788CCK from Maxim[/]
    • T6 (Q4339-B) from Coilcraft


    I have contacted Maxim for like 8-9-10 weeks ago with a request for some free samples of the max787cck & max788ccd, but I haven't received anything yet, and I don't think I will ever receive something from them

    As for the Coilcraft Coil, i have no idea where to start, I looked on several Dutch websites that sell electrical components, but none off them Is offering the MAX-chip, or the CoilCraft-Coil

    Does Anyone have an idea on how to get these 2 components over to the netherlands ?

    Depending on the prices on these 2 components I'm able to make my own power supply cheaper than only an inverter (and i have to purchase another power-supply also, 'cause I don't have a spare-ATX-PSU laying around.)

    I hope that someone can help me with this one !!! ('cause when I would be able to get these components I will have my own DC-2-DC .. whoooooohooooo )

    Anyway
    Thanks in Advance
    Greetz
    Raas - The Netherlands
    ME: VIA epia m10000, lilliput 7', opus 150w, 80gb<br>
    GF: IBM Thinkpad 380, ext. 3.5 80gb, 40x4, PB-IR

  2. #2
    Low Bitrate
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    Getting the Maxim chip as a free sample is definitely a good deal, but you know you could buy they from Maxim for about six dollars (not counting shipping). I'm sure you'd get better service from them then.

  3. #3
    Variable Bitrate
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    Red face

    Getting the T-6 was nearly impossible..

    I found a few suppliers from the Coilcraft page, One that I contacted quoted me 25 US

    You would be interested to know that Rhombus makes an equivalent transformer but I had very little Luck with them as well..
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  4. #4
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    Raas,

    I contacted the UK sales office thru e-mail. I requested a sample of the coils and T6. I'm a student, and I wrote that I needed the parts for a project at school. The coils were sent to me in a week, the transformer took a bit longer and came after three weeks.

    So just e-mail them and request the parts. They will probably send them to you if you have a good story.

    I ordered the Maxim ICs as samples and they came within two weeks. This should also work for you...

    Greetz,

    Shaper

  5. #5
    Maximum Bitrate Raas's Avatar
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    So just e-mail them and request the parts. They will probably send them to you if you have a good story.
    Thanks for the information..

    I -again- have send them both a new request for the free samples, and put up a good (at least I think good) story of that I'm a student and that I need these samples for my project... .. Putted in some information of my old school.. hope this will work

    Now let's hope they will accept my request and send me the parts... ( hope they will... if they do, I can make 2 power supplies !! jihaaaaaa )
    Raas - The Netherlands
    ME: VIA epia m10000, lilliput 7', opus 150w, 80gb<br>
    GF: IBM Thinkpad 380, ext. 3.5 80gb, 40x4, PB-IR

  6. #6
    Maximum Bitrate Raas's Avatar
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    Smile

    Whoa !!!!!

    One week Later !!!!
    found an brown Envelope in my mail tomorrow..
    Opened it, and Yes !!!

    there they where...
    in a small transparent plastic box..

    2 MAX788cck !!! (not available in my country!!)

    along with a bunch of technical information..

    Now I hope that coilcraft also will send me a free sample of the coil I need, otherwise I need something different then that, but that shouldn't be too hard to find.

    Anyway, got 2 of these max788cck (PCB Ready, still need coil, rest off the parts easily available, and almost got half off them)
    I could jump a whole in the sky

    Greetzz

    Raas
    Raas - The Netherlands
    ME: VIA epia m10000, lilliput 7', opus 150w, 80gb<br>
    GF: IBM Thinkpad 380, ext. 3.5 80gb, 40x4, PB-IR

  7. #7
    Maximum Bitrate Raas's Avatar
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    Whoa Again

    again a big brown envelope in my mail yesterday... with..

    2* T6 (Q4339-B) Coils from Coilcraft !!! (again, not available in my country, and if available, way too expensive)

    Seems like putting up a story that I needed those components for a project on school really turned out for both Maxim and CoilCraft.. (I would say, If I'm able to obtain them as free samples, everyone is....)

    So, seems like I can finnaly build some DC-DC supply..
    Rest of the parts is easilly available (If I don't have them already)

    Maybe, I'm going to ask National Semiconductor for a free sample of the LM2587-12T (but if that doesn't work out, they are luckily easily available in the Netherlands)

    Greetz
    Raas - The Netherlands
    ME: VIA epia m10000, lilliput 7', opus 150w, 80gb<br>
    GF: IBM Thinkpad 380, ext. 3.5 80gb, 40x4, PB-IR

  8. #8
    Maximum Bitrate Raas's Avatar
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    and again .. whoa..

    2* MAX787CCK

    Now I just Have to wait for the LM2587-12T.
    Sweeeeeeet.
    Raas - The Netherlands
    ME: VIA epia m10000, lilliput 7', opus 150w, 80gb<br>
    GF: IBM Thinkpad 380, ext. 3.5 80gb, 40x4, PB-IR

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