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Once more Sansui transistor substitutions

I had strike throughs on some of these, but the XenForo S/W doesn't seem to recognize that font style when I copied it over.

From now on I will use "=/=" for "not equal".
 
Sanken (via Digikey) has some TO-220's like the 2SA1859/2SC4883 complementary.

150V / 2A / 20W / hFE 60-240 / fT 120MHz (60MHz) / 30pF
 
Last edited:
ghazzer said:
ToniCH
Here is a Jan 2020 refresher, including recent inputs. I'll edit this list to add more info, and place an asterisk (*) on the new lines.

Original . . . Substitute
2SA561 --- KSA733C (C= collector center)
2SA562 --- BC327
2SA606/2SC959 --- NTE129MCP (Complementary pair product #)
2SA640 --- KSA992 or ZTX795A
2SA697 --- ZTX795A
2SA706 --- KSA1381ESTU, BD136
2SA726 --- KSA992FTA/-FBU, BC560
2SA733 --- KSA733C (C= collector center)
2SA745 --- MJ15004G, upgrade: MJ21193, 2SA1695
2SA747 --- MJ21193G (for example AU-9900/11000 output), 2SA1695
2SA750 --- KSA992FBU
2SA818 --- KSA1381 (pin order!), KSA1142, (2SA0914?)
2SA839 =/= 2SC1669 MJE15033 or 35
2SA847 --- KSA992
2SA850 --- KSA1013, =/= KSA992
2SA850(D,E) --- KSA916YTA
2SA896 --- KSA1381ESTU (pin order!)
2SA899 --- KSA1142, KSA1220AYS, KSA1381
2SA906 --- KSA992
2SA908 --- MJ21193G, MJ21195G (for example AU-20K output)
2SA914 --- KSA1142, KSA1381
2SA917 --- KSC916(Y)TA
2SA939 --- KSA1381, KSA1220AY
2SA958 --- 2SA839?
2SA968B --- 2SA1859A
2SA981 --- MJ21193G
2SA992 --- KSA992
2SA1103 --- 2SA1694
2SA1105 --- 2SA1695
2SA1106 --- 2SA1695 (avail. fr. Digikey), NJW1302G
2SA1170 --- 2SA1493 or 94 SanKen Case MT200 Late G-7700 output

2SB327 --- KSA1220A
2SB507 --- MJE15033G
2SB507(E,F) --- KSA1010Y
2SB526 --- MJE15033, TTA004B
2SB527 --- MJE15033, KSA1220, TTA004B
2SB527(D,E) --- 2SA1859/A
2SB528 --- 2SA1837 (TO220, fully insulated case)
2SB528(E) --- KSA1220A Case TO-26
2SB536 --- KSA1304Y, MJE15033G
2SB537 --- MJE15031G
2SB545(A) --- MJ21193G
2SB560 --- KSA916, KSA916(Y)TA Case TO92L
2SB560(D,E) --- KSA916YTA

2SC281 --- KSC1815
2SC458 --- 2SC2240, 2SC1345
2SC711 --- KSC945C(G)TA Case TO-92
2SC735 --- BC337
2SC839 --- MJE15033or 35
2SC871 --- 2SC2240, KSC1845, or even BC549C or BC550C (pin out differences!)
2SC875 --- ZTX694B
2SC945 --- KSC945C (C= collector center)
2SC959/2SA606 --- NTE129MCP (Complementary pair product #)
2SC983 --- KSC1845
2SC1116 --- MJ21194G (for example AU-9900/11000 output), 2SC4468
2SC1124 --- MJE15032G or stronger KSC2073
2SC1211 --- KSC2383
2SC1313 --- KSC1815
2SC1364 --- KSC945C (best if used on protection board), KSC2690 (for more demanding use)
2SC1400 --- KSC1845
2SC1402 --- MJ21194
2SC1403A --- MJ15003G, upgrade MJ21194, 2SC4468
2SC1585 --- MJ21194G, MJ21196G (for example AU-20K output)
2SC1628 --- KSC3503 (pin order!), (2SC1953?)
2SC1669 --- MJE15032
2SC1708 --- KSC1845
2SC1735 --- KSC2383, KSC1845
2SC1735(D,E) --- KSC2316YTA
2SC1775 --- KSC1845FTA
2SC1811 --- KSC3503ESTU
2SC1845 --- KSC1845
2SC1904 --- KSC3503, KSC2690AY
2SC1951 --- ZTX694B
2SC1953 --- KSC2682, KSC3503
2SC1983 --- TIP112F or KSD1273Q
2SC2071 --- KSC3503, KSC2690AY
2SC2238 --- 2SC4883
2SC2238B --- 2SC4883A
2SC2261 --- MJ21194G
2SC2578 --- 2SC4467
2SC2580 --- 2SC4468
2SC2581 --- 2SC4468 (avail. fr. Digikey), NJW3281G
2SC2774 --- 2SC3857 or 58 SanKen Case MT-200 Late G-7700 output

2SD188(A) --- MJ21194G
2SD247 --- MJ15003G
2SD313(E,F) --- KSC2334Y
2SD356 --- MJE15032, TTC004B
2SD357 --- KSC2690A, KSC2073, TTC004B
2SD357(D,E) --- 2SC4883/A
2SD358(E) --- KSC2690A Case TO126
2SD381 --- KSC3296Y, MJE15032
2SD382 --- MJE15030G, MJE15032
2SD438 --- KSC2316, KSC2316(y)TA Case TO-126


------------------------

Here are some diode and zener subs I've seen mentioned while collecting transistors:

Diodes/rectifiers:
10D1 --- 1N5392, 1N5393, EGP20B
10D2 --- 1N5392, 1N5393, EGP20D
30D2 --- 1N5402G, EGP50D
1S1588 --- 1S2473, 1N4148
1S2473 --- 1N4148, 1N4149, 1N4448
VD1212 --- 2pcs of 1N4148 connected in series
1S1850 --- MUR1620CTG (TO220) - or use 1N5393G (200V 1.5A) or 2A03 (200V/2A) to make your own Common Cathode -diode pack
1S1850R --- MUR1620CTRG (TO220) - or use 1N5393G (200V 1.5A) or 2A03 (200V/2A) to make your own Common Anode -diode pack

Zeners
EQA01-30R (½W) - BZX55B30 - 2%
EQB01-22 --- BZV85-C22 or 1N4748A
RD-13A --- TZX13A-TR
RD-13E(B.C) ½W --- BZX55B13 / 1/2W 2%
RD-15E(B,C) ½W --- BZX55B15 / 1/2W 2%
RD-15E --- ??? Maybe 1N5245BTR, comments?
RD-18E(B,C) ½W --- BZX55B18 / 1/2W 2%
RD-18F(B,C) 1W --- BZX85B18 / 1.3W 2%
RD-18F ---1N4746A, 133
RD-22E --- ??? Maybe 1N5251BTR, Comments?
RD-24F(B,C) / 1W --- BZX85B24 / 1.3W 2%
RD-33F --- BZX85B33-TR
Click to expand...

giphy.gif
 
Sidoel said:
but the component in my pcb not same with component in schematic..look the picture...this ic replace with double transistor A564
Click to expand...
The original part is a 2SA798 dual transistor (not an 'ic' ), it seems obvious that this has been replaced with 2 x 2SA564, as 2SA798 can become noisy with age.

What is the problem you are experiencing?

Note that you should start you own thread for an issue with your AU-217 - this thread is about Transistor substitution NOT AU-217 restore!
 
Sidoel said:
Yes i have a account now...but the component in my pcb not same with component in schematic..look the picture...this ic replace with double transistor A564
Click to expand...
The board is labeled (technically) as an IC (integrated circuit), but in reality it is just a double transistor in one package as Hyperion states. And also as Hyperion states, please start your own thread and we'll gladly help you.
 
kevzep said:
Not a good sub, the MJE is 30mhz as opposed to the 968 which is 100mhz.


Same with this one, not enough ft to be a good sub.

Guys, please make sure you do your research before posting subs.
Click to expand...
Agreed! But will do in a "pinch", or as a last resort if the proper ones cannot be found and still beats an "unknown" NTE replacement, as well as silence. :p A note should be made in the list to that effect.
 
Yes
Skywatcher said:
The board is labeled (technically) as an IC (integrated circuit), but in reality it is just a double transistor in one package as Hyperion states. And also as Hyperion states, please start your own thread and we'll gladly help you.
Click to expand...
Hyperion said:
The original part is a 2SA798 dual transistor (not an 'ic' ), it seems obvious that this has been replaced with 2 x 2SA564, as 2SA798 can become noisy with age.

What is the problem you are experiencing?

Note that you should start you own thread for an issue with your AU-217 - this thread is about Transistor substitution NOT AU-217 restore!
Click to expand...
Thank you verry much sir...wihtout this thread i don't know what i do
 
Yes, initially on a few AU-317II's when I started recapping these several years ago - thinking that they were just as vulnerable as the earlier VD1212's - never come across one personally that has failed or with noise issues (so far)
 
Thanks, AUD101.

I was thinking if the MV-12 (and the KB-265) were made to replace the VD1212's around 1980 or so as a better / improved part...
 

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I'm guess this is an error:
2SA917 --- KSC916(Y)TA

Since 2SA-B is PNP and 2SC-D is NPN.
Is the correct one a KSA916(Y)TA?
 
KSA916 is probably a good sub for the 2SA917, but its Pc is 0.75W vs 0.90W for the 917, and the Ft is 70Mhz vs 120. Both are TO-92 but I did not check out the pin-out.
 
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