PCB current capacity

R

Rodney Davies

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Can someone tell me how much current a 1mm wide trace on a PCB can handle?
Thanks

Rod
 
"Rodney Davies" <rdavies@okanagan.net> wrote in message
news:rOlnk.5913$nu6.259@edtnps83...
Can someone tell me how much current a 1mm wide trace on a PCB can handle?
Thanks
Click to expand...
http://www.powerstream.com/Wire_Size.htm

After you determine (or estimate) the trace
thickness as well, then convert the rectangular
dimensions (area) to the equivalent circular diameter,
you should get fairly close.

-Mike
 
"Rodney Davies" <rdavies@okanagan.net> wrote in message
news:rOlnk.5913$nu6.259@edtnps83...
Can someone tell me how much current a 1mm wide trace on a PCB can handle?
Thanks

Rod
Click to expand...
Not certain about 1mm wide trace but maybe these will help.

Google search : pcb+current+capacity leads to:
http://tinyurl.com/5qv77q

which leads to:
WikiBooks Practical Electronics/PCB Layout/Trace Current Capacity
http://tinyurl.com/6fmryv

and:
PCB Trace Width Calculator
http://tinyurl.com/yoqkje
 
"Jeff Higgins" <oohiggins@yahoo.com> wrote in message
news:489e02cc$0$4011$bbae4d71@news.suddenlink.net...
"Rodney Davies" <rdavies@okanagan.net> wrote in message
news:rOlnk.5913$nu6.259@edtnps83...
Can someone tell me how much current a 1mm wide trace on a PCB can
handle?
Thanks

Rod


Not certain about 1mm wide trace but maybe these will help.

Google search : pcb+current+capacity leads to:
http://tinyurl.com/5qv77q

which leads to:
WikiBooks Practical Electronics/PCB Layout/Trace Current Capacity
http://tinyurl.com/6fmryv

and:
PCB Trace Width Calculator
http://tinyurl.com/yoqkje
Click to expand...
which leads to:

IPC-2221.pdf
http://tinyurl.com/5h8vw9

Shortcomings of the IPC-2221 Current Capacity Guidelines
http://tinyurl.com/63m25x

New Correlations Between Electrical Current
and Temperature Rise in PCB Traces (t341.pdf)
http://tinyurl.com/5mdznl

and on, and ...
Sorry, I'm done now, just got interested.
 
Thanks. Got what I needed.

Rod

"Jeff Higgins" <oohiggins@yahoo.com> wrote in message
news:489e08e7$0$4033$bbae4d71@news.suddenlink.net...
"Jeff Higgins" <oohiggins@yahoo.com> wrote in message
news:489e02cc$0$4011$bbae4d71@news.suddenlink.net...

"Rodney Davies" <rdavies@okanagan.net> wrote in message
news:rOlnk.5913$nu6.259@edtnps83...
Can someone tell me how much current a 1mm wide trace on a PCB can
handle?
Thanks

Rod


Not certain about 1mm wide trace but maybe these will help.

Google search : pcb+current+capacity leads to:
http://tinyurl.com/5qv77q

which leads to:
WikiBooks Practical Electronics/PCB Layout/Trace Current Capacity
http://tinyurl.com/6fmryv

and:
PCB Trace Width Calculator
http://tinyurl.com/yoqkje


which leads to:

IPC-2221.pdf
http://tinyurl.com/5h8vw9

Shortcomings of the IPC-2221 Current Capacity Guidelines
http://tinyurl.com/63m25x

New Correlations Between Electrical Current
and Temperature Rise in PCB Traces (t341.pdf)
http://tinyurl.com/5mdznl

and on, and ...
Sorry, I'm done now, just got interested.
Click to expand...
 
Rodney Davies wrote:

Can someone tell me how much current a 1mm wide trace on a PCB can handle?
Thanks
Click to expand...
There are various online calculators, just use Google imaginatively. There is
no fixed figure, it depends on the temperature you you can accept.

Graham
 
Mike Wahler wrote:

"Rodney Davies" <rdavies@okanagan.net> wrote

Can someone tell me how much current a 1mm wide trace on a PCB can handle?
Thanks

http://www.powerstream.com/Wire_Size.htm

After you determine (or estimate) the trace
thickness as well, then convert the rectangular
dimensions (area) to the equivalent circular diameter,
you should get fairly close.
Click to expand...
Not an advisable method at all.

Graham
 
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