2SC2523 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 160 V
• Collector-Base Voltage, max: 160 V
• Emitter-Base Voltage, max: 7 V
• Collector Current − Continuous, max: 12 A
• Collector Dissipation: 120 W
• DC Current Gain (h_fe): 60 to 200
• Transition Frequency, min: 80 MHz
• Operating and Storage Junction Temperature Range: -65 to +150 °C
• Package: TO-3

Here is an image showing the pin diagram of this transistor.Sometimes the "2S" prefix is not marked on the package - the 2SC2523 might only be marked "C2523".The complementary PNP transistor to the 2SC2523 is the 2SA1073.You can replace the 2SC2523 with the 2N6676, 2SC1586, 2SC2428, 2SD733K or 2SD753.