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MM_PVT
Level 1
Level 1
First question asked Welcome!

Hello,

the BCW66K has a thermal resistance of 70K/W @TS=115°C compared to 215 K/W of the BCW66. Is there really a difference in the thermal design or is it just a different presentation methode? I know that the BCW66 is obsolet, but I want to understand the difference in the two datasheets.

 

Regards
M.M.

 

BCW66K

MM_PVT_0-1651481616246.png

BCW66

MM_PVT_1-1651481673662.png

 

 

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Guru_Prasad
Moderator
Moderator
Moderator
25 likes received 250 sign-ins 50 solutions authored

Hello @MM_PVT 

Thank you for posting your question Infineon community.

 The BCW66 and BCW66K are different packages and the power dissipation capacity is also different.

The Ic(Collector current) will be the main parameter to change the Rth for any device. 

Maybe if you can specify the exact part numbers it would be good to compare.  comparing only thermal parts is not

fair so electrical parameters also contribute here 

Thanks

Guru

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