2SC4738-O Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 50 V
• Collector-Base Voltage, max: 60 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 0.15 A
• Collector Dissipation: 0.1 W
• DC Current Gain (h_fe): 70 to 140
• Transition Frequency, min: 80 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 2SC4738-O transistor can have a current gain of 70 to 140. The gain of the 2SC4738 will be in the range from 70 to 700, for the 2SC4738-BL it will be in the range from 350 to 700, for the 2SC4738-GR it will be in the range from 200 to 400, for the 2SC4738-Y it will be in the range from 120 to 240.Sometimes the "2S" prefix is not marked on the package - the 2SC4738-O might only be marked "C4738-O".The complementary PNP transistor to the 2SC4738-O is the 2SA1832-O.You can replace the 2SC4738-O with the 2SC2712, 2SC2712-O, 2SC3325, 2SC3325-O, 2SC3912, 2SC3913, 2SC3914, 2SC3915, 2SC4209, 2SC4209-O, FMMT451, FMMTA05, FMMTA06, KST05, KST06, KTC3875, KTC3875O, KTC3875S or KTC3875S-O.