2SC3420-Y Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 40 V
• Collector-Base Voltage, max: 50 V
• Emitter-Base Voltage, max: 8 V
• Collector Current − Continuous, max: 5 A
• Collector Dissipation: 10 W
• DC Current Gain (h_fe): 140 to 240
• Transition Frequency, min: 100 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-126F

Here is an image showing the pin diagram of this transistor.The 2SC3420-Y transistor can have a current gain of 140 to 240. The gain of the 2SC3420 will be in the range from 140 to 600, for the 2SC3420-BL it will be in the range from 300 to 600, for the 2SC3420-GL it will be in the range from 200 to 400, for the 2SC3420-GL it will be in the range from 200 to 400.Sometimes the "2S" prefix is not marked on the package - the 2SC3420-Y might only be marked "C3420-Y".The 2SD1624 (SOT-89) and 2SD1624-S (SOT-89) is the SMD version of the 2SC3420-Y transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SC3420-Y with the 2SC2270, 2SC2270-A, 2SD1722, 2SD1722-S, 2SD1723, 2SD1723-S, BDX35, BDX36 or BDX37.