HELP - Mnats 1176 Caps question

[luis]

Good morning to all,


I’m finishing stuffing my Mnats rev J PCB but I have some question regarding the Caps, because in Greg and Mnats part’s list these caps are different:
Can someone tell-me witch one should I use, and why?

Regards,
Luis
Mnats BOOM:
2 220pF CERAMIC C3,C4
1 27pF CERAMIC C6
1 10pF CERAMIC C12
0 33pF CERAMIC C16 (Legacy Item?) Pin 8 is NC on TL071
1 47pF CERAMIC C29
1 220pF CERAMIC C32
2 100pF CERAMIC C100,C101
5 100uF/35V ELECTROLYTIC C2,C7,C8,C13,C21
3 47uF ELECTROLYTIC C9,C11,C34
1 22uF ELECTROLYTIC C14
1 470uF/35V ELECTROLYTIC C15
1 47uF/35V ELECTROLYTIC C18
4 10uF/35V ELECTROLYTIC C23,C30,C31,C33
2 1000uF/35V ELECTROLYTIC C24,C26
1 1000uF/50V ELECTROLYTIC C25
3 1.0uF POLY C1,C10,C17
2 .22uF POLY C5,C27
1 .022uF POLY C22
2 .1uF POLY C28,C35-(C*4 on some boards)
2 6.8uF/35V TANTALUM C19,C20
SEMICONDUCTORS
Count Label-Value Attributes Designation

Greg BOOM:
Ceramic:
10p 100V 5% Monolithic $0.38 1 $0.38 Digikey P4837-ND Panasonic - ECG ECU-S2A100JCA
27p 100V 5% Monolithic $0.38 1 $0.38 Digikey P4842-ND Panasonic - ECG ECU-S2A270JCA
33p 100V 5% Monolithic $0.38 1 $0.38 Digikey P4843-ND Panasonic - ECG ECU-S2A330JCA
47p 100V 5% Monolithic $0.38 1 $0.38 Digikey P4845-ND Panasonic - ECG ECU-S2A470JCA
100p 100V 5% Monolithic $0.38 2 $0.76 Digikey P4849-ND Panasonic - ECG ECU-S2A101JCA
220p 100V 5% Monolithic $0.38 1 $0.38 Digikey P4853-ND Panasonic - ECG ECU-S2A221JCB
Polyester: (B Series) (Min Quantity: 10)
220p 5mm 50V $0.081 10 $0.81 Digikey P4574-ND Panasonic - ECG ECQ-B1H221KF Quantity Needed: 2
22n 5mm 50V $0.093 10 $0.93 Digikey P4586-ND Panasonic - ECG ECQ-B1H223JF Quantity Needed: 1
100n 5mm 50V $0.18 10 $1.80 Digikey P4593-ND Panasonic - ECG ECQ-B1H104JF Quantity Needed: 4
220n 10mm 50V $0.567 10 $5.67 Digikey P4660-ND Panasonic - ECG ECQ-B1224JF Quantity Needed: 2
1u 15mm 63V $0.64 3 $1.92 Digikey 495-1120-ND Epcos B32522C105J
Electrolytic:
6u8 35V $0.24 5 $1.20 Digikey 493-1848-ND Nichicon UPW1V6R8MDD PW Series
10u 35V $0.24 1 $0.24 Digikey 493-1849-ND Nichicon UPW1V100MDD PW Series
22u 35V $0.46 1 $0.46 Digikey P11230-ND Panasonic - ECG EEU-FC1V220 FC Series
47u 35V $0.32 4 $1.28 Digikey P5550-ND Panasonic - ECG ECA-1VHG470 NHG Series
100u 35V $0.40 6 $2.40 Digikey P5551-ND Panasonic - ECG ECA-1VHG101 NHG Series
470u 35V $0.99 1 $0.99 Digikey P10301-ND Panasonic - ECG EEU-FC1V471 FC Series / Output Cap
1000u 35V $1.42 3 $4.26 Digikey P5555-ND Panasonic - ECG ECA-1VHG102 NHG Series
1000u 50V

 

[rotation]

Luis, Mnats only wrote what kind and value u use, Greg specified Digikey numbers.
I would follow Mnats list and order what can get. There are ceramic, poly (polieste, polipropylene) and lytics. Buy what you can get, maybe use suggested Panasonics for lytics.

Miha

 

[flintan]

I can't find the difference. Except that the greg list specifies what brand/quality of each part.

edit: rotation was faster..

 

[kato]

yep, these lists are just about identical - except as already noted, greg has given you specific items from the digikey catalog and mnats specifies only generally. (and they're not in the same sorting order.) use either list but keep in mind that greg built his list specifically for the gyraf board. mnats board is based on gyraf g1176 so parts list should be common for both. (they were when I built mine a few revisions ago.)

I would be sure to use tantalum caps for the 6.8µF C19 and C20 if you can find 'em (mouser: 80-T350F685K035AT.) Greg specifies electrolytic for these parts I believe and they probably work just fine but I'd also bet there's a reason low-leakage tantalums are specified by mnats in these positions.

Kato

search first. ask questions later.

 

[luis]

ok..

Thank you,
luis

 

[Sender]

Another quick question regarding the caps as well.

I see some caps listed as C*, C*1, C*2, C*3. Information on these seems limited (from the mnats site). Can anyone shed a little light onto this?

 

[gswan]

[quote author="kato"]
I would be sure to use tantalum caps for the 6.8µF C19 and C20 if you can find 'em (mouser: 80-T350F685K035AT.) Greg specifies electrolytic for these parts I believe and they probably work just fine but I'd also bet there's a reason low-leakage tantalums are specified by mnats in these positions.
[/quote]

You will find that 10uF low-leakage electro's work just as well here.

 

[louder]

Hi
if you use input tranny,use those components marked *.
best regards
pedro

 

[gswan]

[quote author="Sender"]Another quick question regarding the caps as well.

I see some caps listed as C*, C*1, C*2, C*3. Information on these seems limited (from the mnats site). Can anyone shed a little light onto this?[/quote]
C* : 100uF electro
C*1 : 100uF electro
C*2 : 0.1uF mono
C*3 : 0.1uF mono

 

[gswan]

[quote author="louder"]Hi
if you use input tranny,use those components marked *.
best regards
pedro[/quote]

I don't think he means those parts. He is referring to the additional PSU bypass capacitors which are always good to include to keep any PSU noise down.