I was looking for some heat-sink mounting clips for Lovoltech LU1014Ds which come in a TO-251. The only ones I found (see attached data sheet) are nice and cheap (€0.06), but have a minimum order quantity of 2000.
I know there aren't enough LU1014D users for a GB, but are there other common parts which might use the same case (or make use of the same clips)?
Cheers,
Jeff.
I know there aren't enough LU1014D users for a GB, but are there other common parts which might use the same case (or make use of the same clips)?
Cheers,
Jeff.
TO-251 or IPAK or many other names are widely used on plastic power MosFets and transistors.
They are surface mount devices.
They are surface mount devices.
Jeff,
It seems as if you are looking for a solution to complete your F3 project. Since you are making the PCBs modeled after the First Watt originals, why don't you also keep their approach for mounting the Lovoltech?
It seems as if you are looking for a solution to complete your F3 project. Since you are making the PCBs modeled after the First Watt originals, why don't you also keep their approach for mounting the Lovoltech?
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Hi grimberg,
I had to flip the Lovoltech's over to make the layout work on a single-layer. (My board is double-sided, but since it's home-etched there won't be any through-hole plating to connect the two sides, and I'm trying to avoid soldering in wires for vias).
If push comes to shove I'll just solder the Lovoltechs to a TO-247-sized piece of copper and then mount them the same as the MOSFETs. But the clips would be much handier....
Cheers,
Jeff.
I had to flip the Lovoltech's over to make the layout work on a single-layer. (My board is double-sided, but since it's home-etched there won't be any through-hole plating to connect the two sides, and I'm trying to avoid soldering in wires for vias).
If push comes to shove I'll just solder the Lovoltechs to a TO-247-sized piece of copper and then mount them the same as the MOSFETs. But the clips would be much handier....
Cheers,
Jeff.
You may want to do some reading on this thread in particular post 95 by Nelson. And my hardware store has a little clip intended to fix screen doors that looks like it would work too. F3 Builders Thread
Jeff,
What I am suggesting does not prevent you from etching the boards at home. The original F3 has a round hole large enough to allow the Lovoltech to be soldered on the PCB surface and bent, thru the hole, so its back touches the heat sink.
What I am suggesting does not prevent you from etching the boards at home. The original F3 has a round hole large enough to allow the Lovoltech to be soldered on the PCB surface and bent, thru the hole, so its back touches the heat sink.
@woody, yes I've read the F3 thread. I'll look into screen door clips, though. Sounds like a great idea.
@grimberg, I can't use Nelson's mounting method because as my JFETs are in the opposite orientation it would be the top against the heatsink, rather than the bottom.
Cheers,
Jeff.
@grimberg, I can't use Nelson's mounting method because as my JFETs are in the opposite orientation it would be the top against the heatsink, rather than the bottom.
Cheers,
Jeff.
Wouldn't TO-220 clips work just fine?
The vertical ones will obviously also have clearance for the non-existent tab but otherwise would work.
The vertical ones will obviously also have clearance for the non-existent tab but otherwise would work.
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