Maker Pro
Maker Pro

0402 vs 0201

rahul s

Sep 10, 2015
2
Joined
Sep 10, 2015
Messages
2
Hi,

I am trying to replace 0402 R, L, Cs with 0201s on my design on a Bluetooth and wireless charging board. How do I check which ones I can replace and which ones I shouldnt, or can I replace all? The use case requires me to minimize the board size even if the cost goes up a little. For example, for a 1K resistor, Digikey shows power of 0.063W for a 0402 with a cost $0.004 for 100 pcs, while for a 0201 it shows power 0.05W and a price of $0.0166 (all other characteristics are the same). So does power here matter much? Or if the price increase doesnt matter, is it ok to replace 0402 with 0201?
 

davenn

Moderator
Sep 5, 2009
14,254
Joined
Sep 5, 2009
Messages
14,254
hi there
welcome

it would help to see your circuit with ALL component values shown
THEN reasonable responses could be offered :)

Dave
 

Martaine2005

May 12, 2015
4,932
Joined
May 12, 2015
Messages
4,932
Or if the price increase doesnt matter, is it ok to replace 0402 with 0201?
The simple answer is YES. You can replace higher values too, in certain circumstances.
1/4 watt, 1/2 watt or 2 watts wont matter either. This is their maximum dissipation.
As Davenn replied, please show a circuit.

Martin
 

rahul s

Sep 10, 2015
2
Joined
Sep 10, 2015
Messages
2
Thanks guys!
The circuit is something like this.
 

Attachments

  • prjct1.png
    prjct1.png
    97.6 KB · Views: 141

Martaine2005

May 12, 2015
4,932
Joined
May 12, 2015
Messages
4,932
Hi rahul,
As long as the 0201 components have the same values or higher, it wont be a problem to make the circuit half the size or smaller.
It might be a problem for repairing it though.:eek:

Martin
 

davenn

Moderator
Sep 5, 2009
14,254
Joined
Sep 5, 2009
Messages
14,254
As long as the 0201 components have the same values or higher, it wont be a problem to make the circuit half the size or smaller.

They don't, they are a lower wattage rating ... in a power supply that could be a problem


D
 

Martaine2005

May 12, 2015
4,932
Joined
May 12, 2015
Messages
4,932
Nah, they just need a bigger heat sink....

images
 

davenn

Moderator
Sep 5, 2009
14,254
Joined
Sep 5, 2009
Messages
14,254
hahahaha :)

tho I think the plan of the project was to make things more compact ;) hahaha

that's funny, well played

Dave
 
Top