2SC4497-O Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 300 V
• Collector-Base Voltage, max: 300 V
• Emitter-Base Voltage, max: 6 V
• Collector Current − Continuous, max: 0.1 A
• Collector Dissipation: 0.2 W
• DC Current Gain (h_fe): 50 to 150
• Transition Frequency, min: 70 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: SOT-23

Here is an image showing the pin diagram of this transistor.The 2SC4497-O transistor can have a current gain of 50 to 150. The gain of the 2SC4497 will be in the range from 30 to 150, for the 2SC4497-R it will be in the range from 30 to 90.Sometimes the "2S" prefix is not marked on the package - the 2SC4497-O might only be marked "C4497-O".The complementary PNP transistor to the 2SC4497-O is the 2SA1721-O.You can replace the 2SC4497-O with the FMMT459, FMMTA42, KST42, MMBTA42, PMBTA42, PMBTA44 or PMBTA45.