2SB1115-YK Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -50 V
• Collector-Base Voltage, max: -60 V
• Emitter-Base Voltage, max: -6 V
• Collector Current − Continuous, max: -1 A
• Collector Dissipation: 2 W
• DC Current Gain (h_fe): 300 to 600
• Transition Frequency, min: 120 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: SOT-89

Here is an image showing the pin diagram of this transistor.The 2SB1115-YK transistor can have a current gain of 300 to 600. The gain of the 2SB1115 will be in the range from 135 to 600, for the 2SB1115-YL it will be in the range from 200 to 400, for the 2SB1115-YM it will be in the range from 135 to 270.Sometimes the "2S" prefix is not marked on the package - the 2SB1115-YK might only be marked "B1115-YK".The complementary NPN transistor to the 2SB1115-YK is the 2SD1615-GK.