2SD1065-Q Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 50 V
• Collector-Base Voltage, max: 60 V
• Emitter-Base Voltage, max: 6 V
• Collector Current − Continuous, max: 15 A
• Collector Dissipation: 90 W
• DC Current Gain (h_fe): 70 to 140
• Transition Frequency, min: 20 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-3P

Here is an image showing the pin diagram of this transistor.The 2SD1065-Q transistor can have a current gain of 70 to 140. The gain of the 2SD1065 will be in the range from 70 to 280, for the 2SD1065-R it will be in the range from 100 to 200, for the 2SD1065-S it will be in the range from 140 to 280.Sometimes the "2S" prefix is not marked on the package - the 2SD1065-Q might only be marked "D1065-Q".The complementary PNP transistor to the 2SD1065-Q is the 2SB829-Q.You can replace the 2SD1065-Q with the 2SC3256, 2SC3256-Q, 2SD1840, 2SD1840-Q, 2SD1841, 2SD1841-Q, 2SD1842, 2SD1842-Q, BD245A, BD245B, BD245C, BD249A, BD249B, BD249C, BD745A, BD745B, BD745C or TIP35CA.