There is a picture and a part dimension picture on the datasheet that

shows the metal jacket around the part body that creates a flat surface

for pick up and two legs to prevent rolling.  As long and the two legs

on the jacket and the leads are on the same plane, I agree in theory

there should not be a problem.  Are there any special pick up nozzle

requirements for these?



-Jim

  



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

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

Sent: Friday, June 23, 2006 10:26 AM

To: 'TechNet E-Mail Forum'; James Verrette

Subject: RE: [TN] Leadformed metal can crystals with SMT jacket



Hi James,



If the part comes in on tape'n'reel it shouldn't be a problem for

pick'n'place machines to slap down.  I don't see the "clip" in the

drawing, just a recommended pad layout.  We have placed parts like these

with 1997 vintage machines.



Regards,

Martin



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

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

Sent: Friday, June 23, 2006 6:50 AM

To: [log in to unmask]

Subject: [TN] Leadformed metal can crystals with SMT jacket





For cost an board space reasons we need to use a leadformed 2x6 mm metal

can crystal with a SMD clip like the part shown here:

 

http://www.citizencrystal.com/images/pdf/ks-cmj206.pdf

 

Not the exact manufacturer, but mechanically equivalent part in a

different frequency from Oscilent.  Is there anyone out there that is

using this type of package with the clip successfully in a high volume

application?  How are you putting it down?

 

 

Jim Verrette

Electrical Engineer

 



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