[time-nuts] Minicircuits 10% discount in December

Bob Camp kb8tq at n1k.org
Thu Nov 27 12:49:33 EST 2014


At least last time I looked, the “easy to find” distributors had great selections of parts used for switching power supplies and EMI suppression. When you started to dig for the specialized parts for RF transformers and tuned filters, the stock was pretty thin to nonexistent. If you move from ferrite to powdered iron, the search process alway has been more difficult...


> On Nov 27, 2014, at 11:09 AM, Tim Shoppa <tshoppa at gmail.com> wrote:
> On Thu, Nov 27, 2014 at 10:28 AM, Bob Camp <kb8tq at n1k.org> wrote:
>> The main complaint is the difficulty of getting the correct cores. I seem
>> to have a few dozen bags of cores.
> The mainline distributors (Allied, Newark, Mouser, etc.)  have excellent
> selection of Fair-Rite and other cores. Admittedly to a neophyte the
> equivalence of Fair-Rite or Laird part numbers to an Amidon-style number
> may not be evident.
> Clifton labs has excellent webpages of examples and is also a good way to
> find the cores sizes and materials commonly stocked at the mainline
> distributors using the manufacturer's part number (often with cross-ref to
> Amidon style number as a strong hint!)
> Recently some here expressed concern that the mini-circuits part may
> saturate with medium DC currents. Of course if you are doing a SMT
> production run you don't want to use bigger cores than necessary and most
> of the mini-circuits parts tend to be physically very tiny to meet this
> market. But if you wind your own on bigger cores this is a non-issue.
> Tim N3QE
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