Newsgroups: comp.robotics
Path: brunix!uunet!snorkelwacker.mit.edu!news.media.mit.edu!fredm
From: fredm@media.mit.edu (Fred G Martin)
Subject: Re: miniboard parts
Message-ID: <1992Sep11.151847.14082@news.media.mit.edu>
Keywords: miniboard
Sender: news@news.media.mit.edu (USENET News System)
Organization: MIT Media Laboratory
References: <1992Sep11.132703.17100@bmerh85.bnr.ca>
Date: Fri, 11 Sep 1992 15:18:47 GMT
Lines: 54

> In article <1992Sep11.132703.17100@bmerh85.bnr.ca>
> carrasco@bmers217.bnr.ca (Sylvano Carrasco) writes: 

> 1)	P6203 	(330 uF, 6.3V elect cap)
>
> 	I was told this part was on back-order.  The girl at the order
> desk said they had a 10V 330uF but I'm pretty sure the can size is
> different (8mm as opposed to 6.5mm).  They did have a axial version
> but I figured it would be too difficult to mount.  The next closest
> value was 220 uF (part #P6202).  Is it okay to lower this cap value?

Yes, it would be okay to substitute P6202.  You are also correct in
noting that the 10V model would be too large and the axial model would
be a bitch to mount.

> 2)	Q3102	(1K x 3 isolated RPACK)
> 
>	I was told this was an 'invalid' part.  I asked the girl to
> check the catalogue.  She said there was a Q2102( 1K x 2 isolated),
> Q4102 (1K x 4 isolated) and Q5102 (1K x 5 isolated) but the 1K value
> didn't come in a x3 format.  Can someone check this?

This is a typo in the parts list.  The part number should be Q2102,
which, in fact, is a 1K x 3 isolated part, not 1K x 2 as the sales rep
thought (weird numbering at work here).

I'll fix the typo now.

> 3)	EG1603-ND	(SPDT miniature slide switch)

Another typo, which I was notified of and fixed a couple weeks ago
(i.e., if you had retrieved the doc's in the last two weeks this would
have been fixed already).

The correct number, as you deduced, is "EG1903-ND".  


> Also I'm looking for the L293D and LM2931Z-5.0.  Does DIGIKEY carry
> it?  I know Active has it but they've screwed around twice in two
> weeks in a big way and I really don't want to be a three time loser.

Digikey carries the LM2931Z-5.0 part, as indicated in the parts list.

Digikey *does not* carry the L293D.  What's wrong with Active?  I've
never had any problems with them, at least the Massachusetts office.
Also try calling Arrow for this part.

Sorry for the typo's, thanks for reporting them.

	- Fred Martin
				   
-- 
Fred Martin | fredm@media.mit.edu | (617) 253-7143 | 20 Ames St. Rm. E15-301
Epistemology and Learning Group, MIT Media Lab     | Cambridge, MA 02139 USA
