Transistors

A transistor is a semiconductor device that is commonly used to amplify or switch electronic signals. It consists of three terminals, normally referred to as the emitter, base and collector. The transistor operates in four main states: cutoff, forward active, reverse active and saturation. It acts as an electrical switch when forward biased, meaning a current is allowed to flow between the two terminals. When it is reverse biased, meaning the current flows in the opposite direction, the device is turned off. Transistors are used in amplifying circuits to amplify voltage, current, or even power. They are also used in digital logic circuits to switch between two or more stable states.
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IRFR9020PBF


P-Channel 50 V 9.9A (Tc) 42W (Tc) Surface Mount D-Pak
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Vishay 2504
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AUD 1.3153
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FDMS86104


Transistor: N-MOSFET; unipolar; 100V; 16A; 73W; PQFN8
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ON Semiconductor 2504
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AUD 1.9171
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BCW61BMTF


Fairchild Semiconductor Bipolar Transistors - BJT SOT-23 PNP GP AMP
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ON Semiconductor 2503
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AUD 0.0393
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DTD123TCT116


Bipolar Transistors - Pre-Biased NPN 500mA/50V w/bias resistors
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ROHM 2503
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AUD 0.0597
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BC817-40


Transistors (NPN/PNP) SOT-23 RoHS
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KEXIN 2502
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AUD 0.0158
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MMBT3904W


SOT-323 Bipolar Transistors - BJT ROHS
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YFW Electronics 2502
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AUD 0.0164
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MMDT3904


Bipolar (BJT) Transistor NPN 40V 200mA 300MHz 200mW Surface Mount SOT-363
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HXY MOS 2502
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AUD 0.0176
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KTC3880Y


Transistors (NPN/PNP) SOT-23-3 RoHS
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Shikues 2502
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AUD 0.0193
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AOI4185


Transistor: P-MOSFET; unipolar; -40V; -31A; 31W; TO251A
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Alpha & Omega 2484
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AUD 0.744
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CSD17575Q3


MOSFET 30V, N-channel NexFET Pwr MOSFET
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Texas Instruments 1989
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AUD 0.8804
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