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| From [log in to unmask] Wed Feb 7 17: |
05:32 1996 |
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I am looking for any information on the mounting of TO-220 and TO-247 as
surface mount parts. An additional complication is that these parts dissipate
a significant amount of heat, in the range of 4-10 Watts, and do to minimal
airflow over the parts, must therefore be mounted directly onto a cold plate.
This means that the part body will be mounted on the cold plate but the leads
will be gull-wing formed and soldered to a pwb. See below for a real poor
depiction of problem.
Has anyone else been faced with this situation and if so how was it overcome?
Thanks for your suggestions in advance.
______________ formed lead
|TO-220 / 247| ----
-------------- |======
| _________________________
Gasket | | PWB |
______________|____|_________________________|__________________
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Cold Plate |
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________________________________________________________________|
*************************************************************************
* *
* Al Aquino Lockheed Martin *
* [log in to unmask] Government Electronic Systems *
* PH: 609-722-3166 199 Borton Landing Road *
* FAX: 609-722-4171 Moorestown, NJ 08057 *
* *
*************************************************************************
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