2sd717-e

[atec77]

replacements in a tip pack , I have some mj2955 which might fit the
bill ? as the 717 manage but I would like some safety margin .

 

[SAM]

how odd


atec77 <atec77***@hotmail.com> wrote in message
news:4441a6c2$1@dnews.tpgi.com.au...
replacements in a tip pack , I have some mj2955 which might fit the
bill ? as the 717 manage but I would like some safety margin .

 

[atec77]

SAM wrote:

how odd


atec77 <atec77***@hotmail.com> wrote in message
news:4441a6c2$1@dnews.tpgi.com.au...
replacements in a tip pack , I have some mj2955 which might fit the
bill ? as the 717 manage but I would like some safety margin .


SO you don't have a clue huh ?

 

[Rob]

"atec77" <atec77***@hotmail.com> wrote in message
news:4443003e$1@dnews.tpgi.com.au...

SAM wrote:
how odd


atec77 <atec77***@hotmail.com> wrote in message
news:4441a6c2$1@dnews.tpgi.com.au...
replacements in a tip pack , I have some mj2955 which might fit the
bill ? as the 717 manage but I would like some safety margin .


SO you don't have a clue huh ?

Me neither oddly confused as well.

 

[SAM]

what are you doing?

what is the data on both transistors?

Come on man tell us more.

what would you say if I said my big toe was red?


Rob <rdsfal@yahoo.com.au> wrote in message
news:44430ee3$0$16647$5a62ac22@per-qv1-newsreader-01.iinet.net.au...

"atec77" <atec77***@hotmail.com> wrote in message
news:4443003e$1@dnews.tpgi.com.au...

SAM wrote:
how odd


atec77 <atec77***@hotmail.com> wrote in message
news:4441a6c2$1@dnews.tpgi.com.au...
replacements in a tip pack , I have some mj2955 which might fit the
bill ? as the 717 manage but I would like some safety margin .


SO you don't have a clue huh ?

Me neither oddly confused as well.

 

[I.F.]

"atec77" <atec77***@hotmail.com> wrote in message
news:4441a6c2$1@dnews.tpgi.com.au...

replacements in a tip pack , I have some mj2955 which might fit the bill
? as the 717 manage but I would like some safety margin .

The 2SD717 is a NPN low saturation voltage switching transistor for high
efficiency DC-DC converters, Vcbo=70, Vceo=50, Vebo=5, Ptot=80W, hfe= 70 to
240. IIRC the MJ2955 is a PNP designed to complement the slow old 2N3055, so
if you're planning to use an MJ2955 to replace a 2SD717, make sure the smoke
extractor is running before you switch on!

 

[atec77]

I.F. wrote:

"atec77" <atec77***@hotmail.com> wrote in message
news:4441a6c2$1@dnews.tpgi.com.au...
replacements in a tip pack , I have some mj2955 which might fit the bill
? as the 717 manage but I would like some safety margin .

The 2SD717 is a NPN low saturation voltage switching transistor for high
efficiency DC-DC converters, Vcbo=70, Vceo=50, Vebo=5, Ptot=80W, hfe= 70 to
240. IIRC the MJ2955 is a PNP designed to complement the slow old 2N3055, so
if you're planning to use an MJ2955 to replace a 2SD717, make sure the smoke
extractor is running before you switch on!


Yes , worked this out , will be scanning the comparison charts as

locally I cant source the required device , strange your the only one
with the nouse to work it out

 

[I.F.]

"atec77" <atec77***@hotmail.com> wrote in message
news:444567a7@dnews.tpgi.com.au...

I.F. wrote:
"atec77" <atec77***@hotmail.com> wrote in message
news:4441a6c2$1@dnews.tpgi.com.au...
replacements in a tip pack , I have some mj2955 which might fit the
bill ? as the 717 manage but I would like some safety margin .

The 2SD717 is a NPN low saturation voltage switching transistor for high
efficiency DC-DC converters, Vcbo=70, Vceo=50, Vebo=5, Ptot=80W, hfe= 70
to 240. IIRC the MJ2955 is a PNP designed to complement the slow old
2N3055, so if you're planning to use an MJ2955 to replace a 2SD717, make
sure the smoke extractor is running before you switch on!
Yes , worked this out , will be scanning the comparison charts as locally
I cant source the required device , strange your the only one with the
nouse to work it out

The data book I got the 2SD717 info was from ECA in Germany, they also sell
CD rom databases.

http://www.eca.de/index.php?newlang=eng