2SD600K Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 120 V
• Collector-Base Voltage, max: 120 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 1 A
• Collector Dissipation: 8 W
• DC Current Gain (h_fe): 60 to 320
• Transition Frequency, min: 130 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 2SD600K transistor can have a current gain of 60 to 320. The gain of the 2SD600K-D will be in the range from 60 to 120, for the 2SD600K-E it will be in the range from 100 to 200, for the 2SD600K-F it will be in the range from 160 to 320.Sometimes the "2S" prefix is not marked on the package - the 2SD600K might only be marked "D600K".The complementary PNP transistor to the 2SD600K is the 2SB631K.The FMMT625 (SOT-23) is the SMD version of the 2SD600K transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SD600K with the 2SC2481, 2SC2690, 2SC2690A, 2SD669, KSC2690 or KSC2690A.