2SD471A 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): 70 to 400
• Transition Frequency, min: 130 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92

The 2SD471A 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, base, and collector leads.
Here is an image showing the pin diagram of this transistor.The 2SD471A transistor can have a current gain of 70 to 400. The gain of the 2SD471AG will be in the range from 200 to 400, for the 2SD471AO it will be in the range from 70 to 140, for the 2SD471AY it will be in the range from 120 to 240.Sometimes the "2S" prefix is not marked on the package - the 2SD471A might only be marked "D471A".The complementary PNP transistor to the 2SD471A is the 2SB564A.The KSD471A is the TO-92 version of the 2SD471A.You can replace the 2SD471A with the BC537, MPS6602, MPS6602G, MPSW01, MPSW01A, MPSW01AG or MPSW01G.