At 08:23 AM 6/26/97 -0400, [log in to unmask] wrote:
>Is anyone using a TSOP48 12mm x 20mm package with the IPC SM-782 recomended
>dimensions?  We seem to have problems with center to center measurements and
>also the pad size seems long and narrow.

Looking at IPC-SM-782A amendment 1 (Oct 96) the TSOP48 is listed as a 12mm
x 16mm package not 12mm x 20mm. Perhaps that's the problem you're having?
If the 12mm x 16mm package is what you actually have I also noted that the
center to center dimension for the pads was revised in amendment 1 from
15.40mm to 15.20mm. The pad size is unchanged at 0.30mm x 1.60mm.

I haven't used this package so SM-782 is all I have to go by.



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| Jeff Foster                                         [log in to unmask]    |
| Engineering Assistant                                                     |
| Broadcast Electronics, Inc.                         http://www.bdcast.com |
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