2SD1267 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 60 V
• Collector-Base Voltage, max: 60 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 4 A
• Collector Dissipation: 40 W
• DC Current Gain (h_fe): 40 to 250
• Transition Frequency, min: 20 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 2SD1267 transistor can have a current gain of 40 to 250. The gain of the 2SD1267-P will be in the range from 120 to 250, for the 2SD1267-Q it will be in the range from 70 to 150, for the 2SD1267-R it will be in the range from 40 to 90.Sometimes the "2S" prefix is not marked on the package - the 2SD1267 might only be marked "D1267".The complementary PNP transistor to the 2SD1267 is the 2SB942.You can replace the 2SD1267 with the 2SC1826, 2SC1985, 2SC1986, 2SC2075, 2SC3179, 2SC3851, 2SC3851A, 2SD1267A, 2SD1274, 2SD1274A, 2SD1274B, 2SD613, 2SD823, 2SD857, 2SD857A, BD203, BD243A, BD243B, BD243C, BD303, BD535, BD537, BD539A, BD539B, BD539C, BD539D, BD797, BD799, BD801, BD807, BD809, BD949, BD951, BD953, BD955, BDT81, BDT81F, BDT83, BDT83F, BDT85, BDT85F, BDT87, BDT87F, BDX77, MJE15028, MJE15028G, TIP41D or TIP42D.