2SC3457 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 800 V
• Collector-Base Voltage, max: 1100 V
• Emitter-Base Voltage, max: 7 V
• Collector Current − Continuous, max: 3 A
• Collector Dissipation: 50 W
• DC Current Gain (h_fe): 10 to 40
• Transition Frequency, min: 15 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-220

Here is an image showing the pin diagram of this transistor.The 2SC3457 transistor can have a current gain of 10 to 40. The gain of the 2SC3457-L will be in the range from 10 to 20, for the 2SC3457-M it will be in the range from 15 to 30, for the 2SC3457-N it will be in the range from 20 to 40.Sometimes the "2S" prefix is not marked on the package - the 2SC3457 might only be marked "C3457".You can replace the 2SC3457 with the 2SC3150, 2SC3752, 2SC3866, FJPF5027, KSC5027, KSC5027F or MJE8503.