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Sic for heaters, yes or not?
Sic for heaters, yes or not?
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View Poll Results: Sic for heaters, yes or not?
Yes 0 0%
Not 2 100.00%
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Old 14th June 2018, 11:35 AM   #1
merlin el mago is offline merlin el mago
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Question Sic for heaters, yes or not?

Worth to use Sic rectifiers for heaters, yes or not?
 
Old 14th June 2018, 11:59 AM   #2
azazello is offline azazello  Bulgaria
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What is Sic?
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Old 14th June 2018, 12:36 PM   #3
FullRangeMan is offline FullRangeMan  Brazil
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Stand for Silicon Carbide (SiC) whatever it means.
Others SS rec are not Sic? So what they are?
SiC Rectifiers - STMicroelectronics | DigiKey
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Old 14th June 2018, 12:48 PM   #4
euro21 is offline euro21  Hungary
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Sic for heaters, yes or not?
SiC diode's forward voltage: 1.5...2.5V

Schottky barrier diode's forward voltage is 0.6...0.8V

Peek current of average filament rectifier is 3-12A!

What's the right one for filament rectifier? :-)
 
Old 14th June 2018, 01:20 PM   #5
merlin el mago is offline merlin el mago
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No idea Bela, that's the reason I ask?
 
Old 14th June 2018, 01:32 PM   #6
haiqu is offline haiqu  Australia
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What problem are you trying to solve?
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Old 14th June 2018, 01:41 PM   #7
merlin el mago is offline merlin el mago
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Sic SQ for B+ it's outstanding and I want to know if can be used for heaters to know if increase the SQ.
 
Old 14th June 2018, 01:42 PM   #8
euro21 is offline euro21  Hungary
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Sic for heaters, yes or not?
Quote:
Originally Posted by merlin el mago View Post
No idea Bela, that's the reason I ask?
SiC diode -as filament rectifier- dissipation (due to the greater forward voltage) is two-three times greater than Schottky's dissipation. I never use SiC in this position.
 
Old 14th June 2018, 01:44 PM   #9
merlin el mago is offline merlin el mago
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Thank you Bela, I received information in other to not use Sic for heaters but not the reason.
 
Old 14th June 2018, 01:44 PM   #10
merlin el mago is offline merlin el mago
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Mods please close the thread.

Thank you
Felipe
 

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