2SD1272-P Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 150 V
• Collector-Base Voltage, max: 200 V
• Emitter-Base Voltage, max: 6 V
• Collector Current − Continuous, max: 1 A
• Collector Dissipation: 40 W
• DC Current Gain (h_fe): 800 to 2000
• Transition Frequency, min: 25 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-220F

Here is an image showing the pin diagram of this transistor.The 2SD1272-P transistor can have a current gain of 800 to 2000. The gain of the 2SD1272 will be in the range from 500 to 2000, for the 2SD1272-Q it will be in the range from 500 to 1200.Sometimes the "2S" prefix is not marked on the package - the 2SD1272-P might only be marked "D1272-P".You can replace the 2SD1272-P with the 2SC4381, 2SC4382, 2SD402, 2SD772, 2SD772A, 2SD772B, 2SD792, 2SD792A, 2SD792B, BDX53F, MJE15030, MJE15030G, MJE15032, MJE15032G, MJE5740, MJF15030, MJF15030G, TIP150, TIP41F or TIP42F.