2SA798 DATASHEET PDF

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Hi, There is another transistor IC , I am having problem finding replacement. I understand that this 2SA is an IC made up of 2 transistors. Can this component be modified. Please assist Thanks Carlosraj. Yes, you can use 2 matched small signal PNP transistor to replace it Here's a whole thread on the matter.

Find More Posts by sgrossklass. Fairchild KSA will work beautifully. I've done it by installing two like this: That's seen from the top. Solder the middle legs emitters together in the same hole. Specs will be the same or better but compatible, too. Thermally connected shouldn't be necessary.

It's normal for these input pairs to be installed relatively far away from each other. I've certainly never seen something heat shrinked together with thermal paste [on TO devices! Last edited by Welcome; 6th March at PM. The 2SA transistor is two transistors in one device. Therefor they are by nature thermally connected and the parameters are by definition matched. It is better to thermally bond them, or at least heat shrink them together.

Dual transistors like this can still be found but usually in little tiny surface mount packages. Originally Posted by Carlosraj. There is another transistor IC , I am having problem finding replacement. Originally Posted by Waly. This , and a little pin adapter that you can DIY is an almost perfect equivalent. An externally hosted image should be here but it no longer works.

Please upload images instead of linking to them to prevent this. Just super glue the two ksa parts together. Best solution there is. Originally Posted by Welcome. A standard multimeter with hfe measuring feature is enough. Even not matching is enough, since all ksa produced today have almost exactly the same hfe, certainly a lot closer than the two dies in any 2sa BB code is On.

Smilies are On. Forum Rules. All times are GMT. The time now is AM. Resources saved on this page: MySQL User Name. Stay logged in? Mark Forums Read. Solid State Talk all about solid state amplification. Please consider donating to help us continue to serve you. Page 1 of 2. Thread Tools. View Public Profile. Send a private message to Carlosraj.

Find More Posts by Carlosraj. Send a private message to sgrossklass. Send a private message to Welcome. Find More Posts by Welcome. Send a private message to vintagegeek.

Find More Posts by vintagegeek. Find More Posts by Waly. Send a private message to grazie. Find More Posts by grazie. Quote: Originally Posted by Welcome Just super glue the two ksa parts together. Posting Rules. Frequently Asked Questions Did you forget your password?

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2SA798 Datasheet PDF

Log in or Sign up. Messages: 11, Location: Brooksville, Fl. I have removed it and replaced it on the boards a total of four times now and it is getting a little beat looking, to the point that I fear to have to test it or remove it again. I thought to look for a replacement, just in case and came up empty everywhere I looked. Question one is does anyone know of a replacement for this transistor?

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