2SD1207 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: 2 A
• Collector Dissipation: 1 W
• DC Current Gain (h_fe): 100 to 560
• Transition Frequency, min: 150 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92MOD

Here is an image showing the pin diagram of this transistor.The 2SD1207 transistor can have a current gain of 100 to 560. The gain of the 2SD1207-R will be in the range from 100 to 200, for the 2SD1207-S it will be in the range from 140 to 280, for the 2SD1207-T it will be in the range from 200 to 400, for the 2SD1207-U it will be in the range from 280 to 560.Sometimes the "2S" prefix is not marked on the package - the 2SD1207 might only be marked "D1207".The complementary PNP transistor to the 2SD1207 is the 2SB892.The 2SD1622 (SOT-89) and 2SD1623 (SOT-89) is the SMD version of the 2SD1207 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SD1207 with the 2SD1347 or 2SD1835.