Resin for power supply circuit

[F-Moura]

Hi people,

I´m working at a circuit with MCP73831, this IC is a "Miniature Single-Cell, fully Integrated Li-Ion, Li-Polymer Charge Management Controllers". My electronic will be used in industrial application, in an area with flamable gaz. Therefore, in Brazil, there is a standard. In this case I need use resin in my circuit.
The MCP is sensitive to temperature, in the datasheet is informed that the circuit need a copper area to dissipe heat.

I can use resin for this circuit? There are any resin for power supply ?

tnx very much

 

[tpetar]

Potting Compounds & Encapsulants
https://www.intertronics.co.uk/products/xpottingcompounds.htm


Best regards,
Peter

 

[F-Moura]

In my research, I thought that resins can not be good thermal conductive and have a good insulation. But you showed to me that I was wrong.

Tnx again.

 

[tpetar]

In my research, I thought that resins can not be good thermal conductive and have a good insulation. But you showed to me that I was wrong.

Tnx again.

Can be better than air, all depends what product formula is used, and for what purpose product is made.


Best regards,
Peter

 

[123jack]

cautionary tale
Once upon a time commodore made power supplies for their C64 computer.
They used potting compound in the (seperate) PSU's.
This caused a very healthy sales turnover of replacements about every 18months.
Potted components will run at much higher temperatures than they should for long periods.
They did make for good - if somewhat expensive - doorstops though.