2SD2493 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 110 V
• Collector-Base Voltage, max: 110 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 6 A
• Collector Dissipation: 60 W
• DC Current Gain (h_fe): 5000 to 30000
• Transition Frequency, min: 60 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 2SD2493 transistor can have a current gain of 5000 to 30000. The gain of the 2SD2493-O will be in the range from 5000 to 12000, for the 2SD2493-P it will be in the range from 6500 to 20000, for the 2SD2493-Y it will be in the range from 15000 to 30000.Sometimes the "2S" prefix is not marked on the package - the 2SD2493 might only be marked "D2493".The complementary PNP transistor to the 2SD2493 is the 2SB1624.You can replace the 2SD2493 with the 2SC2579, 2SC2580, 2SC2581, 2SD2384, 2SD2385, 2SD2386, 2SD2387, 2SD2389, 2SD2390, BDV67C or BDV67D.