Other alternatives:

Selective Wavesoldering

Pin in Paste





Kind regards



Frank









Ken Bloomquist <[log in to unmask]> 

Gesendet von: TechNet <[log in to unmask]>

22.09.2009 21:19

Bitte antworten an

TechNet E-Mail Forum <[log in to unmask]>; Bitte antworten an

Ken Bloomquist <[log in to unmask]>





An

[log in to unmask]

Kopie



Thema

Re: [TN] D2PAK-3 Component On Secondry Side













Hi Graham,



Thanks for the comments. The selective solder pallets we generally use are

.25" think material. The boards nest in approximately .05". These parts 

are

.17"which would on leave about .025 to .03" of the pallet. I would be 

afraid

that with that thin of material the pallet would have a pretty short life.



Also this part has a large heatsink area that gets soldered to the board

which doesn't leave much space for glue. Does just a little glue between 

the

leads and the ground plane hold OK?



Thanks again,



Ken 



-----Original Message-----

From: [log in to unmask] [mailto:[log in to unmask]] 

Sent: Tuesday, September 22, 2009 12:00 PM

To: TechNet E-Mail Forum; Ken Bloomquist

Subject: RE: [TN] D2PAK-3 Component On Secondry Side



Hi Kenny

We would do it if we can paste attach the part and shield it with a

pallet during wave soldering.  We've done lots of them that way, no

problem.  You've got to ensure the board is laid out such that you can

use a shielding pallet. 



regards,

 - Graham



-----Original Message-----

From: TechNet [mailto:[log in to unmask]] On Behalf Of Ken Bloomquist

Sent: Tuesday, September 22, 2009 3:50 PM

To: [log in to unmask]

Subject: [TN] D2PAK-3 Component On Secondry Side



Has anyone mounted D2PAK-3 components on the secondary side of a mixed

technology board? We have a customer who has a really tight board and

would

like to mount this component on the secondary side. My feeling is that

it is

not a good idea but if any of you have had experience doing this first

hand

I'd love to hear about it.



Best regards,



KennyB



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