Re: NTE2320 CROSS? (Any IC w/ 2NPN & 2 PNP)

On 11 Oct 2005 10:05:50 -0700, tomg@xxxxxxxxxxx put finger to keyboard
and composed:

>Thanks, Franc!
>
>I did find the Sprague datasheets, for the TPQ65xx parts. I can't
>remember WHERE; maybe through the allegromicro.com website. But
>thanks for offering.
>
>And I think that TI was also mentioned as a manufacturer of the TPQ
>parts.
>
>The MPQ6700 is in stock at www.mouser.com. But only in surface-mount
>form, as far as I can tell. But, it looks like it's the same size as a
>DIP-14 package. So maybe I could use it. Unfortunately, it has a
>different pinout than the others, which would mean changing a PCB
>layout.

I notice that Fairchild have an smt version, MMPQ6700. It is a 16-pin
device.

Is there any reason why you don't just use discrete transistors? Is it
for manufacturing reasons? If it's for matching purposes, then AFAICT
the devices in these arrays are not matched any better than discretes
from the same batch.

>By the way, I think that I was wrong about the pinout of the MPQ6002.
>It's slightly different than the others, if I recall correctly.

Yes, you're right.

http://www.centralsemi.com/leadedpdf/MPQ6002.PDF

>At any rate, I now need to find a source of supply, for something like
>the MPQ6502. I have found them, from various suppliers of obsolete
>ICs, on the web. But I haven't quite been able to find out, yet, if
>any equivalent through-hole IC is still being manufactured (besides the
>NTE2320).
>
>Any additional info, or sources, would be greatly appreciated.

The MPQ7053 may also be suitable. Central Semi
(http://www.centralsemi.com) claim to have it in stock. They also
claim to stock the other MPQ parts.

Try emailing them at salesinquiry at centralsemi dot com.

This is their search engine:
http://www.centralsemi.com/search/default.asp

More data:
http://www.centralsemi.com/leadedpdf/MPQ6700.PDF
http://www.centralsemi.com/leadedpdf/LSSGP079.PDF

Motorola also manufactured the MPQ7051 and MPQ7052 NPN/PNP quad
arrays, but I don't have the pinouts for those.

>Regards,
>
>Tom Gootee

-- Franc Zabkar

Please remove one 'i' from my address when replying by email.
.

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