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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ZTX855


Bipolar (BJT) Transistor NPN 150 V 4 A 90MHz 1.2 W Through Hole E-Line (TO-92 compatible)
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Diodes Incorporated 4221
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AUD 0.6333
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R6004END3TL1


N-Channel 600 V 4A (Tc) 59W (Tc) Surface Mount TO-252
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ROHM 4220
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AUD 1.224
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BC857B 3F


SOT-23 Bipolar Transistors - BJT ROHS
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FOSAN 4219
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AUD 0.0079
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SS8550


SOT-23 Bipolar Transistors - BJT ROHS
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PAKER Microelectronics 4219
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AUD 0.0145
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BC817-40


SOT-23 Bipolar Transistors - BJT ROHS
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FUXINSEMI 4171
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AUD 0.0122
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BSS123 SA


100V 150mA 3.5Ω@10V,120mA 250mW 2.8V@1mA N Channel 40pF@25V -50℃~+150℃@(Tj) SOT-23 MOSFETs ROHS
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FOSAN 4171
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AUD 0.0162
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SN7002N H6433


Infineon Technologies MOSFET
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Infineon 4171
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AUD 0.0482
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TM05N10MI


100V 5A 125m SOT-23-3L MOSFETs ROHS
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Tritech-MOS 4171
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AUD 0.0631
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2N2222A


600mA NPN TO-92 Bipolar Transistors - BJT ROHS
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HXY MOS 3831
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AUD 0.0195
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BRCS5P06MA


SOT-23 MOSFETs ROHS
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Blue Rocket 747
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AUD 0.0685
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