Replacement for 2SA1930/2SC5171

[Jan Dupont]

These seems very hard to get now
What do you use as replacements ?

Thanks in advance.

[syn08]

Originally posted by ACD
These seems very hard to get now
What do you use as replacements ?

Thanks in advance.

I don't think there are any drop in replacements.

On this side of the big pond, www.bdent.com has this pair in stock, currently at a very decent price. I never had any problems (fakes, etc...) with these guys. They also have very good rates for shipping overseas.

[Jan Dupont]

Thanks syn08

I know it will be difficult to find a drop in for those, however there must be some newer BTJs out there, that have similar specs as those

[homemodder]

Hi Jan

Just some info

Toshiba will be releasing 2 new driver transistors pretty soon, no datasheets available at the moment. One a 2A and the other 1A.
Together there will be new releases of power output trannies too, datasheets if i remember correctly are already available, only one stockits i know of that has them and they located in the states. I didnt see any improvement spec wise over the much loved 2sa1943||2sc5200 combo. It remains to be seen what happens with the drivers.

There are many other driver trannies around some of which will even outperform the 2sa1930||2sc5171 most notably from Sanyo and are listed as current products. As someone has mentioned that segor electronics stocks large variation of sanyo products and you are pretty close i will mention 2 that they possible might have.
2SA1249||2SC3117, 2SA1507||2SC3902. There are others too but as always finding them is another story.

Alex

[Jan Dupont]

Thanks Alex

[weissi]

Kessler-electronic in Germany has them at very decent prices. Original ones.

[homemodder]

Thanks for the info, ill have a look. Looking at the pictures for these trannies at segor they seem to me to be copies or fakes. Thats not how sanyo transistors are usually labelled but i dont know for sure if they have changed style. As yet im awaiting a factory response. Also the 2sa1507 is not obsolete as stated acording to sanyos website.

Alex

[Jan Dupont]

Kessler-electronic in Germany has them at very decent prices. Original ones.

Rather quite cheep if they are originals

[homemodder]

Stay away Jan I saw them first

Provided they supply as shown in the picture, those are the real deal as i know them. I purchase sanyo transistors semi direct from factory but have to wait sometimes for long periods so have to buy elsewhere too and never seen them look different to that picture. That is offcourse in the To220 package. Thats why Im suspicious of the segor ones, there is no group E for that tranny and the number is never been below the gain group or rather say ive never seen it like that before.
However segors prices are more in line to what ive known, which would make kessler a bargain buy. Cheap usually means fake but in this case ive compared their other transistor prices and most are cheaper then elsewhere. Look at 2sa1930 for example, not to mention 2sa1943.

Weissi, any experience buying from these two suppliers??

Alex

[weissi]

Most of the "interessting" BJT stuff that kessler-electronic offers is from Inchange Semicon (ICS). I expected the 2SA1930/2SC5171 to be ICS too, but surprise, they are genuine Toshiba. At least I would bet that they are. Had a look into the Toshiba case and marking doc's. All details are correct.
The Toshiba JFET's too are original, although rather "old" stuff, 1998 etc.. (Yeah I know this makes them even better)






Hfe measured with a simple DMM is 200 +/-3 for 30 pcs. 2SC5171 !