Are these transistors any good? For example SymAsym, etc…
http://www.semelab-tt.com/pdf/bipolar/MG6331%20MG6331-R.pdf
http://www.semelab-tt.com/pdf/bipolar/MG9411%20MG9411-R.pdf
http://www.semelab-tt.com/pdf/bipolar/MG6331%20MG6331-R.pdf
http://www.semelab-tt.com/pdf/bipolar/MG9411%20MG9411-R.pdf
SEMELAB|MG6331-R|TRANS,AUDIO,NPN,260V,18A,TO-3P | Newark.com
"SOA 3Adc @ 100Vce is indeed mighty."
SOA is only 1A at 100V.
http://www.farnell.com/datasheets/866305.pdf
"SOA 3Adc @ 100Vce is indeed mighty."
SOA is only 1A at 100V.
http://www.farnell.com/datasheets/866305.pdf
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This is the highest SOA device in plastic I have ever seen:
http://www.onsemi.com/pub_link/Collateral/MJL21195-D.PDF
http://www.onsemi.com/pub_link/Collateral/MJL21195-D.PDF
and the datasheet shows the knee in the SOA plot @ ~2.5A and 60Vce. giving 150W dissipation. Clearly not a 300W device.
and the datasheet shows the knee in the SOA plot @ ~2.5A and 60Vce. giving 150W dissipation. Clearly not a 300W device.
The OP’s data sheet (doc 9096) reads ~2.3A at 140V. The Farnell one (doc 8684) is odd- nine divisions/decade on the log/log graph? So which do you trust?
Brian.
These are the most powerfull I have found in plastic, MG6333 and MG6332:
http://www.farnell.com/datasheets/866313.pdf
http://www.farnell.com/datasheets/866312.pdf
But the Cob is 800 pF!
http://www.farnell.com/datasheets/866313.pdf
http://www.farnell.com/datasheets/866312.pdf
But the Cob is 800 pF!
Also to be kept in mind that these transistors come in 2 diffirent versions with the r rated part having higher vce ratings. What is not clear is whether those curves shown in the farnell datasheet are for the normal or r rated version. From the original semelab datasheet it is quite clear that the r rated version can do around 2.5A at 100vce which would make it mighty indeed but Im not sure whether it is possible from a TO3P package.
Looking at the post1 link to datasheet (9096).
I see two SOA diagrams. One for 6331 - R and the other for 6331. Both are specified as 300W devices with 0.42C/W.
The 100ms and DC curves are almost identical. The 10ms curve is slightly more generous towards the R version.
datasheet 8684 shows SOA
But I ask, why would TT show such a plot?
I see two SOA diagrams. One for 6331 - R and the other for 6331. Both are specified as 300W devices with 0.42C/W.
The 100ms and DC curves are almost identical. The 10ms curve is slightly more generous towards the R version.
datasheet 8684 shows SOA
That would be an acceptable way to specify for short single pulses. I doubt anyone would class DC and 100ms as short. Even 10ms could be argued as short or medium or a long pulse.Ta 25degC, single pulse, no heatsink, natural cooling
But I ask, why would TT show such a plot?
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