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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BC817-40LT1G


Bipolar Transistors - BJT 500mA 50V NPN
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ON Semiconductor 14550
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AUD 0.0357
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DTA124EUBTL


Transistors Switching - Resistor Biased TRANS DIGI BJT PNP 100MA
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ROHM 14550
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AUD 0.036
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FJX4006RTF


Bipolar Transistors - Pre-Biased PNP Si Transistor Epitaxial
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ON Semiconductor 14550
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AUD 0.0462
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KST3906MTF


Transistors Bipolar - BJT PNP Si Transistor Epitaxial
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ON Semiconductor 14550
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AUD 0.0491
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DDTC144WUA-7-F


Transistors Switching - Resistor Biased PRE-BIAS NPN 200mW
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Diodes Incorporated 14550
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AUD 0.0492
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PMST2222,115


Transistors Bipolar - BJT TRANS SW TAPE-7
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Nexperia 14550
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AUD 0.05
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MMBT2369


Transistors Bipolar - BJT NPN HIGH SPD SW
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ON Semiconductor 14550
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AUD 0.055
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MMBT6427-7-F


Trans Darlington NPN 40V 0.5A Automotive 3-Pin SOT-23 T/R
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Diodes Incorporated 14550
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AUD 0.0555
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MMBT3906LT1HTSA1


Infineon Technologies Bipolar Transistors - BJT AF TRANS GP BJT PNP 40V 0.2A
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Infineon 14550
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AUD 0.0557
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BSS84AKW,115


P-Channel 50 V 150mA (Ta) 260mW (Ta), 830mW (Tc) Surface Mount SOT-323
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Nexperia 614
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AUD 0.0377
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