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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MMST3904


Transistors (NPN/PNP) NPN 200mA 40V SOT-323 (SC-70) 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.

Changjiang Availability : 97340
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USD 0.0134

Multiples of: 20

S9015


Transistors (NPN/PNP) PNP 100mA 45V SOT-23 (SOT-23-3) RoHS
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Hottech Availability : 97155
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USD 0.0051

Multiples of: 1

Hot BC807-40,235


Bipolar (BJT) Transistor PNP 45 V 500 mA 80MHz 250 mW Surface Mount TO-236AB
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Nexperia Availability : 97000
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USD 0.0134

Multiples of: 10000

BC846ALT3G


ON Semiconductor Bipolar Transistors - BJT 100mA 80V NPN
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ON Semiconductor Availability : 97000
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USD 0.0142

Multiples of: 10000

MMBT2222A


Transistors (NPN/PNP) SOT23 RoHS
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TWGMC Availability : 96554
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USD 0.0064

Multiples of: 50

SPD08P06PGBTMA1


Infineon Technologies MOSFET P-Ch -60V -8.8A DPAK-2
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Infineon Availability : 96317
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USD 0.3507

Multiples of: 1

BSR57


JFET N-Ch Transistor Lo Freq/Lo Noise
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ON Semiconductor Availability : 96253
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USD 0.0942

Multiples of: 1

BC817-25-7-F


Transistors Bipolar - BJT NPN BIPOLAR
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Diodes Incorporated Availability : 96030
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USD 0.022

Multiples of: 3000

IRLHS2242TRPBF


P-Channel 20 V 7.2A (Ta), 15A (Tc) 2.1W (Ta), 9.6W (Tc) Surface Mount 6-PQFN (2x2)
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Infineon Availability : 93120
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USD 0.1057

Multiples of: 4000

NST3946DXV6T1G


ON Semiconductor Bipolar Transistors - BJT 200mA 60V Dual Switching NPN & 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 : 11640
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USD 0.0831

Multiples of: 4000

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