[sdiy] SMT vs. THrough Hole....

[karl dalen]

> Some components can only be had in surface mount.
> 
> Trouble is, if you are using a part that is only available as through hole, 
> I believe the CA3280 is a good example, you then have to worry about costs 
> again.

There is a device who makes TH devices to SMD, its a manual device
who first cut the legs to desired lenght then bend the legs to the
desired angle. Its very neat, it fitts in your lap, i have worked
for a couple of days to do this thing for a former employer when i
didnt have anything else to do, you put a tube full of DIP IC's in
one end and another empty tube at the other end, then grab the
hand pedal handle (dont know the word for it in english imagine
a bicycle pedal with its 90 deg axel but made for hand grabbing
instead) and start to wave/peddaling , and out comes ready SMD
devices ready for the pick and place machine.

Reg
KD
 
> I would tend to discount the gee-whiz factor.
> 
> At 05:24 PM 6/26/2004 -0700, Peter Grenader wrote:
> >Can anyone share data which would indicate, on a SMALL QUANTITY
> >manufacturing cycle on a given product (let's say 75 of something within a
> >year period), that SMT would be either more reliable, less expensive and
> >more servicable over than  through hole product all things considered?
> >
> >We're talking quantities that would not require the use of pick and place
> >automated assembly machines.
> >
> >Looking at out of warranty service issues, repairability, troubleshooting,
> >cost of hand assembly vs. that of through hole manual assembly etc - it
> >would seem to me that if a manufacturer didn't have the luxury of automated
> >assembly and simply replacing a bad board with a good one, that
> >troubleshooting and repair would much more of an ordeal than if the circuit
> >was through hole.  I'm taking into consideration here the ease of id'ing
> >mislocated parts (via color codes), the relative ease of component
> >replacement, (especially with IC sockets), etc.
> >
> >There is a gee-whiz factor, and yeah, there is something to be said about
> >that.  But at what cost does that come?
> >
> >anyone?
> >anyone?
> >
> >- Peter
> 
>          -Jim
> ***************************************************************
> http://www.oldcrows.net/~patchell
> 
> ***************************************************************
> 
> 
>  

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