Electronics Forum | Wed Jul 25 10:57:08 EDT 2007 | cecil
Our board layout folks are currently designing a PWB using a 132 QFN. The component is .5mm pitch with .35mm square pads. The component manufacturer recommends the following footprint: .4mm square land .3mm square solder resist 1.why do they spec
Electronics Forum | Sat Jul 24 09:06:40 EDT 2004 | davef
We believe that many manufacturers' recommended pads should be close to the last resort. Recommendations are: * Standardize with the IPC guidelines or those by Jim Blankenhorn [ smtplus.com ]. Anyone that wants to change from that standard needs to
Electronics Forum | Tue May 18 19:41:18 EDT 1999 | Raffi Garabedian
I am designing a component for surface mount. Does anybody out there specialize in the design of passive components for SMT? Can you recommend a good reference?
Electronics Forum | Tue May 18 19:41:05 EDT 1999 | Raffi Garabedian
I am designing a component for surface mount. Does anybody out there specialize in the design of passive components for SMT? Can you recommend a good reference?
Electronics Forum | Wed May 19 11:02:41 EDT 1999 | Glenn Robertson
| I am designing a component for surface mount. Does anybody out there specialize in the design of passive components for SMT? Can you recommend a good reference? | Raffi - Many companies have their own specs for parts, but I suggest you check
Electronics Forum | Fri Aug 24 14:15:24 EDT 2007 | clarkk
Ben, I'm not aware of any 'automatic' method to convert PTH footprints to SMT. Typically, many of the components are passives, and there may be a way in your CAD software to change the passives of a common size to a different footprint. That will co
Electronics Forum | Tue Aug 12 07:35:23 EDT 2008 | stevezeva
Hi, Is the footprint per the component manufacturers recommendations? The reason I ask is because it kinda looks like the pads are extending beneath the component. Could cause the part to float up on top of the solder and not allow the leads to wet
Electronics Forum | Tue Apr 29 20:26:03 EDT 2008 | sys_steven
You can adjust to 45mm clearance, But I would recommend staying at 25mm if working with fine pitch and smaller passive components.
Electronics Forum | Wed Jan 07 05:53:05 EST 2009 | sm2009
Hello, does anyone know if it's possible to wave solder 0402 components? Are there drawbacks? Where can I find technical details about recommended footprint and glue point? Last question: are there suggestions about wave soldering for ic with 0,635mm
Electronics Forum | Wed Jan 30 13:17:22 EST 2019 | slthomas
In addition to robl's suggestions, I would look at the footprint on the board to make sure it meets the recommended dimensions. Abnormal layouts, particularly when pads extend under the component too far, can be problematic both by lifting the part
