2SD2493-Y 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): 15000 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-Y transistor can have a current gain of 15000 to 30000. The gain of the 2SD2493 will be in the range from 5000 to 30000, for the 2SD2493-O it will be in the range from 5000 to 12000, for the 2SD2493-P it will be in the range from 6500 to 20000.Sometimes the "2S" prefix is not marked on the package - the 2SD2493-Y might only be marked "D2493-Y".The complementary PNP transistor to the 2SD2493-Y is the 2SB1624-Y.You can replace the 2SD2493-Y with the 2SC2579, 2SC2580, 2SC2581, 2SD2384, 2SD2384-C, 2SD2385, 2SD2385-C, 2SD2386, 2SD2386-C, 2SD2387, 2SD2387-C, 2SD2389, 2SD2389-Y, 2SD2390, 2SD2390-Y, BDV67C or BDV67D.