Mini-Mig Bill of Materials

[whiteb]

Crom00 wrote:
Working on getting a small run of these made in China. To get real world costs the factories need a Bill of Materials. The schematics on Dennis' site are not enough.

I made a list from the schematic and I am not in the Industry, To be honest, if they cannot make a part list from the schematic, then they are not the right company for the Job.

Each IC type is identified (74HC, LM etc), All the resistor values are there, in the Schematic file.
I even had all the Digikey part numbers, individual costs, costs of each part per 25, and per 100.

[whiteb]

narmi wrote:

DJBase wrote:
None, because its hard to get the needed parts around. The 68k is discontinued at Freescale.

The exact part Dennis used is discontinued because it is not RoHS compliant.  There is a RoHS compliant part that is pin compatible.

Oh who cares about lead free, unless you are going to lick the Minimig to death.

[whiteb]

Hans_ wrote:

whiteb wrote:
Oh who cares about lead free, unless you are going to lick the Minimig to death.

You know, I can almost picture some people here doing that.  :laughing:

Hans

Hahahaha yeah, we Amiga freaks do get a bit possessive of our Girlfriends

[whiteb]

Eclipse wrote:
Hi
If built in China RoHS won't be a problem per se. They don't adhere to it yet.
I'm guessing 0805 as well for the size as it's fairly standard.
Why you trying to get the exact 68000? There are very cheap alternatives to this now. They are 32 bit but can be programmed to 8/16.
Freescale

LOLZ, China is not exactly adhering to reducing Lead in paint for children's toys, why should Solder be any different. (And for the Record, I do not believe Matel's {bleep} retracting statement).

[whiteb]

Dennis wrote:
I have uploaded the original BOM to the download section on my site. You can download it here.
Also, I have added a second page with some clarifications to the BOM here.

Dennis

Dennis, In addition to the Farnell part number for the Max232/SO16, Digikey 296-6936-5-ND

[whiteb]

Flap, all Digikey's are 5 Volt.

[whiteb]

So the Digikey part, even though Digikey list it as a 5v part, it would work at the minimig's 3.3? or we HAVE to get the one from Farnell ?

Its a pity there is not *ONE* supplier to supply all the parts.

[whiteb]

Dennis.

CT_100U/6.3V Farnell (1135233) is not showing up in the Farnell Database.

[whiteb]

The diodes look right (I think) according to the Schematics.

http://dkc3.digikey.com/PDF/T073/P1199.pdf (Diag 4A appears to be the same one) Digi P/N BAR43SCT-ND

[edit]

With the 0805 resistors, Parts list says Metal Film 1%, Digikey have them, but only 0.1% and 5% tolerance. 5% or 0.1% tolerance ?

After all 2k2 is 2200Ohms, but 2.2k is also 2200Ohms yes ?

[whiteb]

Cool stuff, my only hesitation right now then, is the Push button switches.

What Switch is used, i was thinking "Momentary Tact"

Like Catalog page 1842, Figure 7.  Plenty of different size button/Force ratings.  http://pdfcatalog.digikey.com/T073/SectI.pdf

[whiteb]

Just keep an eye on both Farnell and Digikey pricings.

I am finding running Farnell in AU$ (My local currency), for some products, it is cheaper to buy in 50's, than it is to buy in 10's or 20's from Digikey.

[whiteb]

Colin_Camper wrote:
I used these;

Button1 2    SWITCH TACT SPST 130GF VERT SEAL   Cannon, ITT Industries   2      401-1828-ND

Thanks Colin.. Looking at those now

[whiteb]

560R is just 560 Ohms.
560K is 560Kilohms (560 Thousand ohms)
560M is 560Megohms (560 million Ohms, but resistors don't go that high)

Seven RES-805/1% 560 resistors

1% tolerance Resistors, 0805 Package (SMC), 560R

http://au.farnell.com/jsp/search/productdetail.jsp?sku=9333363

But they come in packs of 50, so for the 7 resistors, you have to buy the pack of 50.

[whiteb]

wizard66 wrote:
The DC CON power connectors sales only by 10 units at farnell.
I have all resitor's all 100 units
I'm building 3 minimigs so for some resistors only 97 left in the bag !

(spijkenisse)

LOLZ, you are looking in the wrong place.

I got them listed 50 per bag, so I will only have 47 left over, for a Measley $1 per bag (50) and not the $10 you will probably pay for the 100.  And the answer is, Do not order them from Digikey.

/me quickly bangs off an order to secure those three remaining FPGA's. (You just need to know how to sweet talk Digikey to have them waiver the minimum order of 120).

Oh and if Farnell only want you to buy a bag of 10, then buy ONE OFF for .42 from Digikey.

[whiteb]

Okay guys, Dennis has ALTERED the BOM on us once again (I don't know why).

The MAX232A/SO16 has now been changed to SP3232EUCN.  Which Digikey online search does not yield results.  But no fear, I found a replacement :crazy:

Lets see how long it takes you guys to find it.