About Transistors

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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2N3645


2N3645 TRANSISTOR T/HOLE
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Philips Availability : 77
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USD 0.6322

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BD243C


Transistors Bipolar - BJT NPN Epitaxial Sil
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ON Semiconductor Availability : 75
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USD 0.6657

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722863X


DARLINGTON POWER TRANSISTOR NPN 100V 10A 125W TO-247
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STMicroelectronics Availability : 74
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USD 1.0546

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NIF62514T1G


MOSFET N-CH HD+ 6A 40V SOT223 ELECTRONICS PART
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ON Semiconductor Availability : 70
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USD 1.7308

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418770FB


MJ2955 PNP TRANS 60V 4A TO- T/HOLE
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ON Semiconductor Availability : 64
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USD 1.1482

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BC33825TA


Transistors Bipolar - BJT NPN 25V 800mA HFE/400
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ON Semiconductor Availability : 57
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USD 0.2022

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BC182L


Bipolar Transistors - BJT NPN 50V 100mA HFE/5
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ON Semiconductor Availability : 51
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USD 0.1608

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IRFD110


IRFD110 HEXDIP T/HOLE
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Vishay Availability : 51
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USD 1.3526

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MPSA43


MPSA43 #0202 PCN12106
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ON Semiconductor Availability : 50
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USD 0.0423

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SS9013FBU


Transistors Bipolar - BJT NPN40V500MA
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ON Semiconductor Availability : 50
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USD 0.0689

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BD911


Transistor: NPN; bipolar; 100V; 15A; 90W; TO220AB
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STMicroelectronics Availability : 50
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USD 0.504

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IRF540NL


IRF540NL HEXFET
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Infineon Availability : 50
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USD 0.825

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STP60NE06-16


STP60NE06-16 PMOS 60V
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STMicroelectronics Availability : 50
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USD 1.4378

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715123AB


2N7000 S.S NCH TMOS FE* T/HOLE
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ON Semiconductor Availability : 49
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USD 0.13

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STW26NM60


STW26NM60 MOSFET N-CH 600V 30A TO-247
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STMicroelectronics Availability : 46
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USD 2.5515

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IRFD213


IRFD213 150V 0.45A MOSFET T/HOLE
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Vishay Availability : 45
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USD 0.8671

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IRF4905


IRF4905 MOSFET T/HOLE
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Infineon Availability : 45
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USD 2.4361

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BC557BG


Transistors Bipolar - BJT 100mA 50V PNP
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ON Semiconductor Availability : 44
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USD 0.4048

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BU506D


BU506D TO-220 NPN 1500V TRANS T/HOLE
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Philips Availability : 43
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USD 1.3715

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