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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Hot BC817-16W-7


Bipolar (BJT) Transistor NPN 45 V 500 mA 100MHz 200 mW Surface Mount SOT-323
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Diodes Incorporated Availability : 2910
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USD 0.0177

Multiples of: 1

WG3401


SOT-23 MOSFETs ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Wild Goose Availability : 2910
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USD 0.0178

Multiples of: 20

MMST3904


40V 200mW 60mA SOT-323 Bipolar Transistors - BJT ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

LGE Availability : 2910
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USD 0.0178

Multiples of: 20

BC847-C-RTK/P


SOT-23 Bipolar Transistors - BJT ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

KEC Availability : 2910
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USD 0.0178

Multiples of: 20

MMBT2907AT


SOT-523 Bipolar Transistors - BJT ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

YFW Electronics Availability : 2910
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USD 0.0178

Multiples of: 20

BC848C


Transistor: NPN; bipolar; 30V; 100mA; 250mW; SOT23
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

CDIL Availability : 2910
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USD 0.0179

Multiples of: 10

BC846AQ


SOT-23 Bipolar (BJT) ROHS
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Yangjie Availability : 2910
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USD 0.018

Multiples of: 20

BRCS3404MA


30V 5.5A N Channel SOT-23 MOSFETs ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Blue Rocket Availability : 2910
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USD 0.0181

Multiples of: 20

MMDT3904DW


SOT-363 Bipolar Transistors - BJT ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

GOODWORK Availability : 2910
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USD 0.0181

Multiples of: 20

MMDT3906DW


SOT-363 Bipolar Transistors - BJT ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

GOODWORK Availability : 2910
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USD 0.0181

Multiples of: 20

MMDT3946DW


SOT-363 Bipolar Transistors - BJT ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

GOODWORK Availability : 2910
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USD 0.0181

Multiples of: 20

MMUN2237LT1G


Bipolar Transistors - Pre-Biased NPN DIGITAL TRANSISTOR
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor Availability : 2910
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USD 0.0187

Multiples of: 1

MMBTRC105SS


SOT-23 Digital Transistors ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

YFW Electronics Availability : 2910
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USD 0.0182

Multiples of: 20

DTA143ECA


SOT-23 Digital Transistors ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

YFW Electronics Availability : 2910
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USD 0.0182

Multiples of: 20

DTC143ZUA


SOT-323 Digital Transistors ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

SLKORMICRO Availability : 2910
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USD 0.0182

Multiples of: 20

MMST5551-JSM


SOT-323 Bipolar (BJT) ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

JSMSEMI Availability : 2910
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USD 0.0182

Multiples of: 20

MMBTSC3356T-3G


SOT-523 Bipolar Transistors - BJT ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Hong Kong Chuangji Availability : 2910
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USD 0.0185

Multiples of: 20

MUN5233T1G


Bipolar Transistors - Pre-Biased 100mA 50V BRT NPN
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor Availability : 2910
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USD 0.0185

Multiples of: 3000

MUN5135T1G


Transistors Switching - Resistor Biased 100mA 50V BRT PNP
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor Availability : 2910
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USD 0.0185

Multiples of: 3000

DTC114EUA


SOT-323 Digital Transistors ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

YFW Electronics Availability : 2910
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USD 0.0185

Multiples of: 20

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