Insulated tab triacs

[Phil Allison]

** Many triacs etc are sold in packages that have a metal tab internally
insulated from the chip.

Eg the BTA41-600B :

http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00002263.pdf

Anyone know for sure what the insulation material used is ?

Beryllium oxide ?




..... Phil

 

[Spehro Pefhany]

** Many triacs etc are sold in packages that have a metal tab internally
insulated from the chip.

Eg the BTA41-600B :

http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00002263.pdf

Anyone know for sure what the insulation material used is ?

Beryllium oxide ?

.... Phil

Interesting question, as it appears they've decided BeO isn't all that
bad from an RoHS perspective.

Here's at least one counter-example:

http://www.littelfuse.com/products/...port/RoHS HF_Compliance_TO 218_2010 08 13.pdf

Alumina is used as the insulator.


Best regards,
Spehro Pefhany