[DSP-10] TOKO chip inductors

Mon, 7 Jul 2003 07:45:27 -0700

Hello Thor,

TAPR was able to make a large buy before all the TOKO parts were gone.
Though the kit does have a small mix of Tok0 and API-Delevan parts.

On the DSP-10 web page at

    http://www.proaxis.com/~boblark/parts.htm

Bob says,

Surface Mount (SMT) Inductors The 32CS SMT inductors, listed in the original
parts list, are being phased out by Toko. Some values are still available
from Digi-Key, others may not be. One alternative is the API-Delevan Series
1210 Unshielded inductors, also available from Digi-Key. I bought some of
each of the five values used in the DSP-10 and tested them. The differences
were measureable, but not big. For the DSP-10 I feel that the API-Delevan
parts should work fine. The biggest drawback for the API-Delevan parts is
that their values are NOT marked on the case. We have lived with this
situation on the caps, but it does require extra care. Soldering, size, and
ruggedness all seem fine. The API-Delevan parts are less expensive. RSL 19
Apr 01, posted here 5 Sept 01.

I hope this helps.

- Steve, N7HPR
  ([email protected])

> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of Thor, N9IK
> Sent: Saturday, July 05, 2003 3:03 PM
> To: [email protected]
> Subject: [DSP-10] TOKO chip inductors
>
>
> Sorry if this is a duplicate.... I first used the wrong email account to
> send it.
>
>
>
> OK, so this might be a silly question, but how critical is it to use the
> specified TOKO fixed inductors listed on the parts list?  For
> example, can
> phenolic types be used instead of wire-wound?  I am NOT building from a
> kit, and am having trouble finding some of the specified components.  A
> DigiKey rep suggested alternates, but I once had bad luck with
> one of their
> suggestions re alternate parts - the component that was suggested was not
> at all compatible with what I requested.  Anyway, here are their'
> suggestions:
>
> 39NH - original p/n TKS1008CT, alternate p/n DN10390CT
> .33uH - original p/n TKS1019CT, alternate p/n DN10331CT
> 2.2uH - original p/n TKS1029CT, alternate p/n DN10222JCT
> 10uH - original p/n TKS1037CT, alternate p/n DN10103JCT
> 100NH - original p/n TKS1013CT, alternate p/n DN10101CT
>
> What inductors are being included with the kits from TAPR?
>
> Thanks in advance...
>
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