KSD471AC Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 30 V
• Collector-Base Voltage, max: 40 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 1 A
• Collector Dissipation: 0.8 W
• DC Current Gain (h_fe): 120 to 400
• Transition Frequency, min: 130 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92
• Electrically Similar to the Popular 2SD471AC transistor

The KSD471AC is manufactured in a plastic TO-92 case. When looking at the flat side with the leads pointed downward, the three leads emerging from the transistor are, from left to right, the emitter, collector, and base leads. Suffix "C" means center collector in KSD471A.
Here is an image showing the pin diagram of this transistor.The KSD471AC transistor can have a current gain of 120 to 400. The gain of the KSD471ACG will be in the range from 200 to 400, for the KSD471ACY it will be in the range from 120 to 240.The complementary PNP transistor to the KSD471AC is the KSB564AC.You can replace the KSD471AC with the 2SC4408, 2SD1207, 2SD1347, 2SD1835, 2SD789 or KSD1021.