![]() Due to this biasing current, 2N3904 goes to the saturation state and the LED turns ON. Emitter Important Notice : This data sheet and its contents (the Information) belong to the members of the AVNET group of companies (the Group) or are. When the switch is closed, the base of the transistor is biased, and current flows to the base of the transistor. Transistor, NPN, TO-92 2N3904 Part Number Table Dimensions : Millimetres Dimensions Min. Small Signal Bipolar Transistor, 0.2A I(C), 40V V(BR)CEO, 1-Element, NPN, Silicon, TO-92. Discrete Semiconductors Transistors Multicomp 2N3904 Multicomp 2N3904 Datasheet. ![]() Due to this, 2N3904 remains in the cut-off state and the LED does not glow. View and download the latest Multicomp 2N3904 Transistors PDF Datasheet including technical specifications. And no current flows to the base of the transistor. When the switch is open, the base of the transistor is not biased. Motorola SmallSignal Transistors, FETs and Diodes Device Data. in the SMD Transistor Series, be sure to review the datasheet of this transistor. ![]() The required resistor value can be easily calculated using Ohm’s law. 2N3904 NPN transistor SMD SOT-23 product suitable price, fast shipping. Proper biasing of the base ensures adequate base current to turn ON the transistor.Ī resistor of 220 Ohm is connected between the load(LED) and the collector terminal to protect the LED from overcurrent. The base of the transistor is biased using a 10 K Ohm resistor(R3) in parallel to the 1 K Ohm resistor(R2) plus base-emitter junction resistance(in series). The complete circuit is powered via a 5 V supply. In the circuit diagram given above, 2N3904 is used as a switch to turn ON/OFF an LED connected at the collector terminal. ![]()
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