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Fun => The Porch => Topic started by: arw01 on June 20, 2014, 11:47:34 am

Title: Putting in an order at Mouser, what to toss with it?
Post by: arw01 on June 20, 2014, 11:47:34 am

needed a couple of items for the bobcat servo so ordering those and looking for other items to toss in?

I have a enough little fuse for the hubs and such from a prior order, and getting the fuse for my WESD51 that blew on the back of the pcb (looks like a diode) so that will be back up and running in a week or so.

Other other fun little items I should stock up on or ??

Alan

Title: Re: Putting in an order at Mouser, what to toss with it?
Post by: taybrynn on June 20, 2014, 12:30:15 pm

it can be useful to have a spare RS485 chip and maybe a voltage reg like the 7805 ... perhaps a spare LED in green and red ... but it really depends on what kind of hardware you have or play to have in the near future.

I can just say from my own experience those are the only parts I've needed to snag from other kits on occasion.  Usually because I did something stupid, then could not get the voltage
regulator back out intact ... or the 485 chip was flaky and its nice to have a replacement when needed.  I'm sure someone can recommend a better list than I can.

Title: Re: Putting in an order at Mouser, what to toss with it?
Post by: arw01 on June 20, 2014, 01:42:13 pm

The chip is smart, was always going to get a couple extra pics too just in case, will toss them into the mix as well, thanks.

Alan

Title: Re: Putting in an order at Mouser, what to toss with it?
Post by: taybrynn on June 20, 2014, 07:39:06 pm

Might as well, since the shipping at mouser is steep. 

Title: Re: Putting in an order at Mouser, what to toss with it?
Post by: arw01 on June 20, 2014, 08:43:14 pm

$4. 99 economy if the order doesn't get to big. :)



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Title: Re: Putting in an order at Mouser, what to toss with it?
Post by: taybrynn on June 20, 2014, 08:51:50 pm

That's not bad

Title: Re: Putting in an order at Mouser, what to toss with it?
Post by: arw01 on June 21, 2014, 02:18:20 am

The 485 chips are not resolving there, they suggest a surface mount instead of the dip package ones.

Anyone happen to know the proper "new" part there at Mouser?

Title: Re: Putting in an order at Mouser, what to toss with it?
Post by: vairmoose on June 21, 2014, 07:07:05 am

This is a major issue.  Nearly all of the hardware here at DLA uses that chip.   The single mfg closed that product line of DIP configured chips...  leaving only SMD available.    A quick check on Octopart shows limited availability of the chip from other sources  (at a higher price that what Mouser used to have them).    There are DIP to SMD adapters available but at not a small price (over $7 on a onsie purchase).       

Larry

Title: Re: Putting in an order at Mouser, what to toss with it?
Post by: pwalstead on June 21, 2014, 07:58:09 am

Try the Mouser part# 700-MAX490EPA. It is a pin compatible 485 transceiver with the same specs as the ST device except for lower current consumption.

Title: Re: Putting in an order at Mouser, what to toss with it?
Post by: pwalstead on June 21, 2014, 08:02:30 am

I am sorry that should be the 700-MAX485EEPA or 700-MAX481EPA, I was looking at the wrong pinout on the data sheet.

Title: Re: Putting in an order at Mouser, what to toss with it?
Post by: jnealand on June 21, 2014, 12:49:34 pm

I used this mouser part for a non-Lynx board  595-SN75176AP  Never tried it with a Lynx product, but I did buy some extras so in case I needed a 485 chip in the future.

Title: Re: Putting in an order at Mouser, what to toss with it?
Post by: arw01 on June 21, 2014, 01:12:57 pm

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I used this mouser part for a non-Lynx board  595-SN75176AP  Never tried it with a Lynx product, but I did buy some extras so in case I needed a 485 chip in the future.

Oh shoot, JUST ordered them and the chips I got were quite a lot more money..