2SA1941 is a PNP Power Transistor with maximum collector current capability of -10 Amps and Maximum Collector Emitter Voltage of -140V in TO-3P package. It is most commonly used in Hi-Fi Audio Amplifier Circuits and general purpose Power Amplifiers. Recommended for 70-W high-fidelity audio frequency amplifier output stage. Complementary to 2SC5198.

2SA1943 is a PNP High Power Transistor with maximum collector current capability of 17 Amps and Maximum Collector Emitter Voltage of 250V. It is most commonly used in Hi-Fi Audio Amplifier Circuits and general purpose Power Amplifiers. It comes in TO264 package.

2SC5198 is a NPN Power Transistor with maximum collector current capability of 10 Amps and Maximum Collector Emitter Voltage of 140V in TO-3P package. It is most commonly used in Hi-Fi Audio Amplifier Circuits and general purpose Power Amplifiers. Recommended for 70-W high-fidelity audio frequency amplifier output stage. Complementary to 2SA1941.

TTA1943 - PNP Transistor designed for general purpose power amplifier and switching applications. This is an original Toshiba transistor for high power audio amplifiers.

2SA2121 is a PNP High Power Transistor with maximum collector current capability of 15 Amps and Maximum Collector Emitter Voltage of 200V. It is most commonly used in Hi-Fi Audio Amplifier Circuits and general purpose Power Amplifiers. It comes in TO264 package. Complementary to 2SC5949.

TTC5200 - NPN Transistor designed for general purpose power amplifier and switching applications. This is an original Toshiba transistor for high power audio amplifiers.

TOSHIBA 2SC5200 - NPN Transistor designed for general purpose power amplifier and switching applications. This is an original Toshiba transistor for high power audio amplifiers.

2SC5949 - NPN Transistor designed for general purpose power amplifier and switching applications. This is an original Toshiba transistor for high power audio amplifiers. Complementary to 2SA2121.