I needed these Toshiba C5198 transistors for my stereo that blew out two of them

------Question for 2SC5198-O(S1,E Please Put your question below------

And notice there’s some difficulties, I have to notify the manufacturer i’m not really sure why all that is I need 4 of these only.”This product requires a manufacturer-approved quote before it can be ordered”

2SC5198

EVVO

TRANS NPN 140V 10A TO-3PS

This is a problem getting from Toshiba, This shows us the equivalent so my question is for a Yamaha 100 Watt receiver would this be close enough equivalent for reasonably good sound??

Hello @tracy.best,

Welcome to the TechForum.

The EVVO 2SC5198 was designed for audio power amplifier.

Please verify that you are replacing a Toshiba 2SC5198 with the proposed EVVO 2SC5198. If yes, both a Japanese Industrial Standard (JIS) and should have nearly identical specifications.

  • Reasonably good? Absolutely

  • Perfect? Very few could tell the difference.

Consider replacing the driver transistors as they may have been weakened by the output transistor failure. Same story for the complementary (assumed) 2SA1941.

Happy soldering,

APDahlen