Content-Type: |
text/plain; charset="ISO-8859-1" |
Sender: |
|
Subject: |
|
From: |
|
Date: |
Wed, 26 May 1999 08:56:03 -0700 |
MIME-Version: |
1.0 |
X-To: |
|
Reply-To: |
|
Parts/Attachments: |
|
|
Since most fab notes specify a minimum hole wall thickness of 1 mil
continuous, calculate the current handling ability of a trace with a width
equal to the diameter of the hole and a thickness of 1mil,
Then multiply by 3.141592654
A calculator can be found at: http://www.ultracad.com/calc.htm
<http://www.ultracad.com/calc.htm>
Or online at http://www.geocities.com/CapeCanaveral/Lab/9643/TraceWidth.htm
<http://www.geocities.com/CapeCanaveral/Lab/9643/TraceWidth.htm>
-----Original Message-----
From: Rose, Steve M [mailto:[log in to unmask]]
Sent: Tuesday, May 25, 1999 5:40 AM
Subject: Through-hole current calculator?
How much current can that via safely handle? What are the
effects over temperature? Area and plating considerations?
A current calculator of sort would help simplify a bit.
Thanks,
################################################################
DesignerCouncil E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
################################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body:
To subscribe: SUBSCRIBE DesignerCouncil <your full name>
To unsubscribe: SIGNOFF DesignerCouncil
################################################################
Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information.
For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312
################################################################
################################################################
TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
################################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body:
To subscribe: SUBSCRIBE TechNet <your full name>
To unsubscribe: SIGNOFF TechNet
################################################################
Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information.
For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312
################################################################
|
|
|