2SD845-O Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 150 V
• Collector-Base Voltage, max: 150 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 12 A
• Collector Dissipation: 120 W
• DC Current Gain (h_fe): 80 to 160
• Transition Frequency, min: 20 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: MT-200

Here is an image showing the pin diagram of this transistor.The 2SD845-O transistor can have a current gain of 80 to 160. The gain of the 2SD845 will be in the range from 55 to 160, for the 2SD845-R it will be in the range from 55 to 110.Sometimes the "2S" prefix is not marked on the package - the 2SD845-O might only be marked "D845-O".The complementary PNP transistor to the 2SD845-O is the 2SB755-O.You can replace the 2SD845-O with the 2SC2526, 2SC2565, 2SC2565-O, 2SC2773, 2SC2838, 2SC2921, 2SC2922, 2SC3857 or 2SC3858.