2SC1628-O Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 160 V
• Collector-Base Voltage, max: 180 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 0.05 A
• Collector Dissipation: 1 W
• DC Current Gain (h_fe): 70 to 140
• Transition Frequency, min: 120 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-202

Here is an image showing the pin diagram of this transistor.The 2SC1628-O transistor can have a current gain of 70 to 140. The gain of the 2SC1628 will be in the range from 70 to 240, for the 2SC1628-Y it will be in the range from 120 to 240.Sometimes the "2S" prefix is not marked on the package - the 2SC1628-O might only be marked "C1628-O".The complementary PNP transistor to the 2SC1628-O is the 2SA818-O.You can replace the 2SC1628-O with the 2N6557 or 2N6558.