2SC3417 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 300 V
• Collector-Base Voltage, max: 300 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 0.1 A
• Collector Dissipation: 7 W
• DC Current Gain (h_fe): 40 to 320
• Transition Frequency, min: 70 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-126

Here is an image showing the pin diagram of this transistor.The 2SC3417 transistor can have a current gain of 40 to 320. The gain of the 2SC3417-C will be in the range from 40 to 80, for the 2SC3417-D it will be in the range from 60 to 120, for the 2SC3417-E it will be in the range from 100 to 200, for the 2SC3417-F it will be in the range from 160 to 320.Sometimes the "2S" prefix is not marked on the package - the 2SC3417 might only be marked "C3417".The complementary PNP transistor to the 2SC3417 is the 2SA1353.The PMBTA42 (SOT-23) is the SMD version of the 2SC3417 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SC3417 with the 2SC2899, 2SC3503, 2SC3789, 2SC3790, BD128, BD129, KSC2258A or KSC3503.