2SD2053 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: 9 A
• Collector Dissipation: 100 W
• DC Current Gain (h_fe): 60 to 200
• 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 2SD2053 transistor can have a current gain of 60 to 200. The gain of the 2SD2053-P will be in the range from 100 to 200, for the 2SD2053-Q it will be in the range from 60 to 120.Sometimes the "2S" prefix is not marked on the package - the 2SD2053 might only be marked "D2053".The complementary PNP transistor to the 2SD2053 is the 2SB1362.You can replace the 2SD2053 with the 2SC4278, 2SD1717, 2SD1718, 2SD2052, MJW3281A or MJW3281AG.