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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MMBTA44


Transistors (NPN/PNP) NPN 200mA 400V SOT-23 (SOT-23-3) RoHS
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Changjiang Availability : 123598
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USD 0.0268

Multiples of: 10

Hot KSD880YTU


Bipolar (BJT) Transistor NPN 60 V 3 A 3MHz 30 W Through Hole TO-220-3
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ON Semiconductor Availability : 123078
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USD 0.2926

Multiples of: 1

BFU520AR


RF Bipolar Transistors Dual NPN wideband Silicon RFtransistor
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NXP Availability : 122821
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USD 0.2427

Multiples of: 1

Hot 2SA1774TLR


Bipolar (BJT) Transistor PNP 50 V 150 mA 140MHz 150 mW Surface Mount EMT3
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ROHM Availability : 122637
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USD 0.0255

Multiples of: 1

BC817-25,235


Transistors Bipolar - BJT TRANS GP TAPE-13
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Nexperia Availability : 122539
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USD 0.0108

Multiples of: 50

SS8550


SOT-23 Bipolar Transistors - BJT ROHS
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JSMSEMI Availability : 122479
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USD 0.0092

Multiples of: 50

DDTB113ZC-7-F


Diodes Incorporated Bipolar Transistors - Pre-Biased 200MW 1K 10K
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Diodes Incorporated Availability : 122220
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USD 0.029

Multiples of: 3000

BCR505E6327HTSA1


Trans Digital BJT NPN 50V 500mA Automotive 3-Pin SOT-23 T/R
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Infineon Availability : 122220
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USD 0.0861

Multiples of: 18000

BCW 66KG E6327


Transistors Bipolar - BJT NPN 45.0 V 100 mA
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Infineon Availability : 122089
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USD 0.0483

Multiples of: 1

SI3459BDV-T1-BE3


MOSFET P-CHANNEL 60-V (D-S)
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Vishay Availability : 121876
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USD 0.3804

Multiples of: 1

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