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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FHT9012Y-ME


SOT-23 Bipolar Transistors - BJT ROHS
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Fenghua Advanced Availability : 2861
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USD 0.0088

Multiples of: 50

MMBTA42


SOT-23 Bipolar Transistors - BJT ROHS
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Wild Goose Availability : 2861
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USD 0.0093

Multiples of: 50

BC848C


30V 200mW 800@2mA,5V 100mA NPN SOT-23 Bipolar Transistors - BJT ROHS
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WPMtek Availability : 2861
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USD 0.0097

Multiples of: 50

G2302S


SOT-23 MOSFETs ROHS
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LGE Availability : 2861
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USD 0.0099

Multiples of: 50

ES3134K


20V 1.25A 710mW 220m@4.5V,0.9A 750mV@250uA 1PCSNChannel SOT-23 MOSFETs ROHS
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ElecSuper Availability : 2861
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USD 0.0105

Multiples of: 50

2N7002K


SOT-23 MOSFETs ROHS
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Jinkaisheng Availability : 2861
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USD 0.0106

Multiples of: 50

DTC144EE


NPN 30mA 50V SOT-523 Digital Transistors ROHS
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HXY MOS Availability : 2861
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USD 0.0106

Multiples of: 50

BAV70T


SOT-523 Bipolar Transistors - BJT ROHS
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Tak Cheong Availability : 2861
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USD 0.0109

Multiples of: 50

MMBT2222AW


SOT-323 Bipolar Transistors - BJT ROHS
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Hong Kong Chuangji Availability : 2861
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USD 0.0109

Multiples of: 50

MMBT4401


40V 300mW 100@150mA,1V 600mA NPN SOT-23 Bipolar Transistors - BJT ROHS
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MSKSEMI Availability : 2861
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USD 0.0111

Multiples of: 50

BC857B


45V 225mW 100mA SOT-23 Bipolar Transistors - BJT ROHS
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LGE Availability : 2861
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USD 0.0113

Multiples of: 50

MMBTSD123


15V 200mW 150@100mA,1V 1A NPN SOT-23 Bipolar Transistors - BJT ROHS
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YFW Electronics Availability : 2861
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USD 0.0114

Multiples of: 50

MMBT2907AW


SOT-323 Bipolar Transistors - BJT ROHS
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Hong Kong Chuangji Availability : 2861
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USD 0.0115

Multiples of: 50

BSS138P,215-ES


60V 400mA 1.5 417mW 1V 1PCSNChannel SOT-23 MOSFETs ROHS
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ElecSuper Availability : 2861
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USD 0.0115

Multiples of: 50

2SK3018-ES


60V 300mA 1.8 350mW 1.1V 1PCSNChannel SOT-23 MOSFETs ROHS
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ElecSuper Availability : 2861
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USD 0.0115

Multiples of: 50

TM2302CI


SOT-23 MOSFETs ROHS
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Tritech-MOS Availability : 2861
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USD 0.0132

Multiples of: 50

DTC044TUBTL


Bipolar Transistors - Pre-Biased NPN Digital Transtr w/built in resistors
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ROHM Availability : 2861
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USD 0.0159

Multiples of: 1

UMD3N


SOT-363 Digital Transistors ROHS
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Changjing Electronics Technology Availability : 2861
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USD 0.0204

Multiples of: 20

FMMT491


SOT-23 Bipolar Transistors - BJT ROHS
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Hottech Availability : 2861
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USD 0.0218

Multiples of: 20

AO3404


30V 5.8A 25mΩ@10V,5.8A 1.4W 2.5V@250uA null SOT-23 MOSFETs ROHS
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Yongyutai Electronics Availability : 2861
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USD 0.0238

Multiples of: 10

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