2SB985U 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: -3 A
• Collector Dissipation: 1 W
• DC Current Gain (h_fe): 280 to 560
• Transition Frequency, min: 150 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92MOD

Here is an image showing the pin diagram of this transistor.The 2SB985U transistor can have a current gain of 280 to 560. The gain of the 2SB985 will be in the range from 100 to 560, for the 2SB985R it will be in the range from 100 to 200, for the 2SB985S it will be in the range from 140 to 280, for the 2SB985T it will be in the range from 200 to 400.Sometimes the "2S" prefix is not marked on the package - the 2SB985U might only be marked "B985U".The complementary NPN transistor to the 2SB985U is the 2SD1347U.The 2SB1123 (SOT-89), 2SB1123-U (SOT-89), 2SB1124 (SOT-89), 2SB1124-U (SOT-89) and NZT660A (SOT-223) is the SMD version of the 2SB985U transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.