DESIGNERCOUNCIL Archives

April 1999

DesignerCouncil@IPC.ORG

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
Jeffery Worth <[log in to unmask]>
Reply To:
DesignerCouncil E-Mail Forum.
Date:
Fri, 16 Apr 1999 08:16:01 -0500
Content-Type:
text/plain
Parts/Attachments:
text/plain (65 lines)
From a fabrication standpoint we like to see a minimum annular ring of .005
inches on a
side. For example if the hole is .010 the land should be a minimum of .020
inches. We prefer to see .007" on a side.

Jeff




Mark Holmes <[log in to unmask]> on 04/16/99 03:35:51 AM





Hello all,

Can anyone offer me any advice on where I can get hold of some guidelines
regarding the size of the Pad with respect to the hole size, for through
hole components?

Ideally I would like to know how best to determine the correct pad size for
a
given pin size, taking into account current requirements, whether the part
is to be wave soldered or hand soldered, and whether the board is double or
single sided.

I would like some sort of guideline for reference, but would also like to
hear anyone
else's 'rule of thumb' methods.

Regards,

Mark Holmes

[log in to unmask]

################################################################
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
################################################################

################################################################
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
################################################################


ATOM RSS1 RSS2