.... confused..... LOL
If IRFP240 = IRF240
IRFP240 spec sheet says 20A rated,
150W power dissipation in a plastic
T0-247AC package.
IRF240 spec sheet says 18A rated,
125W power dissipation in a metal
can, T0-204AE package.
I thought the metal cans were
superior ?
Or, these two parts are identical
but completely different <-- joke
If IRFP240 = IRF240
IRFP240 spec sheet says 20A rated,
150W power dissipation in a plastic
T0-247AC package.
IRF240 spec sheet says 18A rated,
125W power dissipation in a metal
can, T0-204AE package.
I thought the metal cans were
superior ?
Or, these two parts are identical
but completely different <-- joke
Mike W: there seems to be some confusion th packasge names here-
The TO-3 is the top-hat we're all familiar with. (IRF240/9240 , MJ15024/15025, 2N2955/3055, etc.)
The TO-247 is the overgrown TO-220 (without the exposed metal tab) that has become popular in the last 10 years. (IRFP240/9240, MJW16006, MTW20N50E, etc.)
The TO-264 is an overgrown TO-247 with the same footprint, and is sometimes known as TO-3BPL, or case 340-G. (MJL2381A/1302A, MLJ21193/21194, MTY100N10, etc.)
The TO-247 and TO-264 are NOT the same size- they only have the same footprint. 0.225" between pins.
The '264 does have higher power dissipation ratings, though. Please correct me in I am wrong on this. Hope this helps.....![Big grin :D :D](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
The TO-3 is the top-hat we're all familiar with. (IRF240/9240 , MJ15024/15025, 2N2955/3055, etc.)
The TO-247 is the overgrown TO-220 (without the exposed metal tab) that has become popular in the last 10 years. (IRFP240/9240, MJW16006, MTW20N50E, etc.)
The TO-264 is an overgrown TO-247 with the same footprint, and is sometimes known as TO-3BPL, or case 340-G. (MJL2381A/1302A, MLJ21193/21194, MTY100N10, etc.)
The TO-247 and TO-264 are NOT the same size- they only have the same footprint. 0.225" between pins.
The '264 does have higher power dissipation ratings, though. Please correct me in I am wrong on this. Hope this helps.....
Sure, if you can still find some MTY10010Es, they are good for 100V bdss, 100A Id (yup, that's 100Amps drain current
) , and are in the TO-264 super case. These have been long-discontinued by ON. If no luck there, try paralleling three NTB75N06s for each side of the push-pull topology to give an Rds(on) of 3.3 milliohms! ![bigeyes :bigeyes: :bigeyes:](https://files.diyaudio.com/forums/images/smilies/bigeyes.gif)
Use the MC33025 for the controller, and four MBR20200CTs (200V, 20A) for the output diodes. Use an MOC802 for the optoisolator and a TL431 for the voltage reference. Clock the oscillator for 100kHz (this gives a switching frequency of 50kHz), and let'er rip!
Use lakewater to keep things
.
![yes :yes: :yes:](https://files.diyaudio.com/forums/images/smilies/yes.gif)
![bigeyes :bigeyes: :bigeyes:](https://files.diyaudio.com/forums/images/smilies/bigeyes.gif)
Use the MC33025 for the controller, and four MBR20200CTs (200V, 20A) for the output diodes. Use an MOC802 for the optoisolator and a TL431 for the voltage reference. Clock the oscillator for 100kHz (this gives a switching frequency of 50kHz), and let'er rip!
Use lakewater to keep things
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