Heatsinks for Topswitch Flyback controller?

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treez

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Does anyone have advice of methods of fixing heatsinks to the eSIP-7C package of Topswitch-jx?
I noticed that the eSIP-7C package does not have a screw hole for heatsink fixation.
(eSIP-7C is seen on page 35 of datasheet)

Topswitch-jx datasheet:-
https://ac-dc.power.com/sites/default/files/product-docs/topswitch-jx_family_datasheet.pdf

Also, Please Do you have a part number for the plastic clamper that gets used to afix the topswitch-jx to the heatsink in fig1 of page 5 of of DER-243 document..

DER-243 document:-
https://ac-dc.power.com/design-support/reference-designs/design-examples/der-243-65-w-adapter/

Also, concerning DER-299 document, (fig16, page25) do you know if the "std spacer" (ITEM No. 6) of thickness 0.125" is a standard off-the-shelf part or is it custom made?
Also, is ITEM No. 5 (Gap pad) an off-the-shelf part?, or does it have to be cut out of a bigger sheet of gap pad by an assembly worker?..

DER-299 document:-
https://ac-dc.power.com/design-supp...er-299-100-w-low-profile-11-mm-flyback-dc-dc/
 

No idea where they got that little clip but it looks like it might be made of something similar to gap pad that is very thermally conductive.

For heat sinking a package like that which doesn't provide a nice screw down point you either need to use gap pad or thermal paste cement to make a connection to your enclosure or a big hunk of metal.

Gap pad can definitely be purchased in large squares and cut down with a simple knife, nothing special to it but I think it can be pricey.

- - - Updated - - -

Actually, here is some info on the clips. Vendor information near the bottom.
 
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