BC817-40W Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 45 V
• Collector-Base Voltage, max: 50 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 0.5 A
• Collector Dissipation: 0.2 W
• DC Current Gain (h_fe): 250 to 600
• Transition Frequency, min: 100 MHz
• Operating and Storage Junction Temperature Range: -65 to +150 °C
• Package: SOT-323
• Electrically Similar to the Popular BC337-40 transistor

Here is an image showing the pin diagram of this transistor.The BC817-40W transistor can have a current gain of 250 to 600. The gain of the BC817-16W will be in the range from 100 to 250, for the BC817-25W it will be in the range from 160 to 400, for the BC817W it will be in the range from 100 to 600.The complementary PNP transistor to the BC817-40W is the BC807-40W.The BC337-40 is the TO-92 version of the BC817-40W.