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Cheap small component bags

Discussion in 'Electronic Basics' started by M. Hamed, Apr 6, 2013.

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  1. M. Hamed

    M. Hamed Guest

    Would something like this:

    work for storing electronic components such as transistors, caps, and small ICs. My component box is running out of little drawers.

    Or would static be a problem?

    If I recall correctly, electrostatic is mostly a problem with digital CMOS ICs. So I'd think with NPN/PNP transistors and passive components it would not be a big issue.

    Anti-static bags that are advertised as such are much more expensive in term of dollar/bag. Hard to compare with this bargain.

    Any recommendations?

  2. Guest

    If you're not going to spring for anti-static bags don't even think
    about using plastic bags. Yes, even bipolar transistors are static
    sensitive. You might try paper coin envelopes for passives.
  3. Baron

    Baron Guest

    M. Hamed Inscribed thus:
    I buy large A3 size metalized bags and cut them to the size I need.
    Then I use a heat sealer to seal the two or three open edges. I
    currently am paying about ten cents for them.
  4. Guest

    The resistor and capacitor manufacturers give us notebooks with the
    more common values in the various sizes but these would be really nice
    to store cut tapes of each of the parts in the BOM for test/repair. I
    hadn't seen them for sale before. Thanks!
    I usually just write on the (back of the) cut tapes themselves.
    Yes, that is handy. I keep all the datasheets and schematic
    variations the same way (binders above the bench/desk).
  5. M. Hamed

    M. Hamed Guest

    I liked this idea very much so I ran off to Staples got me a pack of 100 envelopes and I'll put them to use very soon. Thanks John.

    I see this could also come handy.
  6. P E Schoen

    P E Schoen Guest

    "asdf" wrote in message
    I also use coin envelopes, as well as little "pill bags" I get at the dollar
    store in bags of 50 for $1. They have a writeable area for dosage and time,
    but I print out labels (especially for kits), and I put the labels inside
    the bags. Most of the parts are not static sensitive and those that are
    usually are in their own anti-static bags, which I sometimes cut down for
    small quantities.

    I have some old card files which have an adjustable stop which can be used
    to keep the bags upright and easy to arrange and find. I have also made some
    cardboard dividers that help.

    I use a parts numbering system which begins with a reference designator
    "Q_", "U_", "R_", etc. Then I add the part number or value, and the last
    item is the part decal "SO16", "0805", "TO220", etc. I use the same system
    for my schematic and PCB library.

  7. That's hardly a good example, since it is a MOSFET which were the devices
    most sensitive. Their high input resistenace means there's nothing much
    to dissipate any static voltage, and thus the verg high static voltage
    hits them hard. I'm not sure if they have clamping diodes. The earliest
    MOSFETs certainly sounded fussy, all kinds of schemes to ensure they
    wouldn't be static damaged, but they didn't have the clamp diodes like the
    later ones.

    CMOS, at least after the earliest issues had passed, tend to have those
    clamp diodes, offering some protection.

    One is foolhardy to not do something to ensure CMOS and MOS devices are
    protected from static.

    Anyone who doesnt' have endless parts hasnt' been in the hobby for long.
    The reality is, no one system works for everything. Try to keep the
    'special parts" handy, and you end up having to sort through a lot to find
    the specific special part. There'll be lots of things that don't work in
    the same system as smaller parts, all those knobs and transformers.
    Sometimes you accumulate too many of the same sort of part, I seem to have
    stripepd endless crystal oscillators off scrap boards.

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