BC549 is a NPN transistor hence the collector and emitter will be left open (Reverse biased) when the base pin is held at ground and will be closed (Forward biased) when a signal is provided to base pin. … When this transistor is fully biased then it can allow a maximum of 100mA to flow across the collector and emitter.


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SKU: BC549-ND Category:


Manufacturer ON Semiconductor
Manufacturer Part Number BC549
Description TRANS NPN 30V 0.1A TO-92
Detailed Description Bipolar (BJT) Transistor NPN 30V 100mA 300MHz 500mW Through Hole TO-92-3

Transistor Type NPN
Current – Collector (Ic) (Max) 100mA
Voltage – Collector Emitter Breakdown (Max) 30V
Vce Saturation (Max) @ Ib, Ic 600mV @ 5mA, 100mA
Current – Collector Cutoff (Max) 15nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce 110 @ 2mA, 5V
Power – Max 500mW
Frequency – Transition 300MHz
Operating Temperature 150°C (TJ)
Mounting Type Through Hole

BC549 PDF Document

Additional information


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