MicroSquirt.com read only forum (Jan.15,2018)

I need to get an Ampseal plug for injector/coil side of sequencer. Mouser has a few 35 pin plugs, and it's not clear the differences, but only one is in stock and available. It's Mouser part number 571-776164-4, mfgr part number 776164-4.

http://www.mouser.com/ProductDetail/Tyc ... mK4DsR4qig

Is this the right one? Also, do I only need the terminals when I order the plug, or will it be missing seals or anything else?

thx

Welcome to the world of parts shortages - notice all the 0 availabilities everywhere. The part you show is correct, but it is gray. if you look at the similar link at the bottom, there is a 776164-1 listed that is black in color. That is the one you really want, but only because the color will match, but that is unavailable - est delivery around June. So I would go with the gray if you want to get started.

Actually, if it's the same as for the 23-pin Ampseal, the different colors have different positions for the keys and slots meaning they will only connect with a connector of the opposite sex having the same color. But you can always grind the plastic key in the header or make new slots in the plug.

Jean

thx. gray it is.

TheMonkey wrote:I need to get an Ampseal plug for injector/coil side of sequencer. Mouser has a few 35 pin plugs, and it's not clear the differences, but only one is in stock and available. It's Mouser part number 571-776164-4, mfgr part number 776164-4.

http://www.mouser.com/ProductDetail/Tyc ... mK4DsR4qig

Is this the right one? Also, do I only need the terminals when I order the plug, or will it be missing seals or anything else?

thx

I assume you'll need contacts. Do you have tooling for it?

Are you sure the color is just cosmetic? According to this datasheet, each color has a different keying.

That might be worth considering using different colors at each end of the Sequencer on production units. Put a black connector on the main end (which is almost the same pinout as a normal Microsquirt) and a different colored connector on the other end so you can't accidentally plug it up backwards (which I managed to do with one prototype).

I agree with Matt on different fits for either end.

I already ordered the gray one, I guess I'll do some modification to make it fit.

Peter- Yeah, I got the crimpers and bunch of pins when I did the BMW unit. I think I read that they were hard to work with, but mine assembled really nicely.

TheMonkey wrote:I agree with Matt on different fits for either end.

I already ordered the gray one, I guess I'll do some modification to make it fit.

Peter- Yeah, I got the crimpers and bunch of pins when I did the BMW unit. I think I read that they were hard to work with, but mine assembled really nicely.

+1 on different connectors

Did you get your tooling from Mouser? What part #'s did you end up getting?

Thanks!

BTW email notifications appear to be broken from this site again.

Peter-

pins i used are pn 571-770520-1

the crimpers i got, i *think* i got them from Mouser, but all the little Mouser boxes I see in my stash (with the invoices in them) are the small variety that they wouldn't fit in. I looked at the crimpers i have, there is not a number stamped in them. blue handles, and i'm certain i spent < $30 on them. i soldered all the connections too - sort of belt and suspenders approach.

TheMonkey wrote:Peter-

pins i used are pn 571-770520-1

the crimpers i got, i *think* i got them from Mouser, but all the little Mouser boxes I see in my stash (with the invoices in them) are the small variety that they wouldn't fit in. I looked at the crimpers i have, there is not a number stamped in them. blue handles, and i'm certain i spent < $30 on them. i soldered all the connections too - sort of belt and suspenders approach.

Ah so these are not the official AMP seal crimpers. I suspected that many open barrel crimpers would do the job well enough. I have several lying around. I think I'll get some pins and have a contest between them.

Thanks!