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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LMBT3904LT1G


Transistors (NPN/PNP) NPN 200mA 40V SOT-23 (SOT-23-3) RoHS
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Leshan Availability : 2428996
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USD 0.004

Multiples of: 50

MMBT4403WT1G


Transistors Bipolar - BJT 600mA 40V PNP
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ON Semiconductor Availability : 2371650
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USD 0.0295

Multiples of: 1

MMBTA56LT1G


Bipolar Transistors - BJT 500mA 80V PNP
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ON Semiconductor Availability : 2354190
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USD 0.0168

Multiples of: 3000

MMBT2907A-TP


Transistors Bipolar - BJT 350mW, 600mA
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Micro Commercial Components (MCC) Availability : 2348370
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USD 0.009

Multiples of: 3000

MMBT4401-7-F


Transistors Bipolar - BJT 40V 300mW
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Diodes Incorporated Availability : 2258160
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USD 0.0141

Multiples of: 3000

PDTC143ZT,215


Transistors Switching - Resistor Biased TRANS RET TAPE-7
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Nexperia Availability : 2240700
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USD 0.011

Multiples of: 3000

SS8050-TA


Transistors (NPN/PNP) NPN 1.5A 25V SOT-23 (SOT-23-3) RoHS
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Changjing Electronics Technology Availability : 2234201
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USD 0.0083

Multiples of: 50

MMUN2233LT1G


Bipolar Transistors - Pre-Biased 100mA 50V BRT NPN
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ON Semiconductor Availability : 2226150
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USD 0.0115

Multiples of: 3000

CPH3423-TL-E


Trans MOSFET N-CH Si 60V 1.5A T/R
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ON Semiconductor Availability : 2150490
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USD 0.128

Multiples of: 1

SMMBTA06LT1G


Transistors Bipolar - BJT SS DR XSTR SPCL TR
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ON Semiconductor Availability : 2109750
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USD 0.0358

Multiples of: 3000

PUMD3.115


Digital Transistors 1 NPN，1 PNP - Pre-Biased (Dual) 100mA 50V SOT-363 RoHS
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Nexperia Availability : 2098110
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USD 0.0216

Multiples of: 3000

MMDT3904-TP


Transistors Bipolar - BJT 200mA 40V
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Micro Commercial Components (MCC) Availability : 2086470
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USD 0.0286

Multiples of: 3000

MMDT2222V-7


Transistors Bipolar - BJT NPN BIPOLAR
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Diodes Incorporated Availability : 1926420
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USD 0.082

Multiples of: 3000

PMZB670UPE,315


MOSFET P-Chan -20V -680mA
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Nexperia Availability : 1885679
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USD 0.071

Multiples of: 1

2N7002K


New Quadratic Unclassified Data SOT-23 RoHS
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Microdiode Electronics Availability : 1800368
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USD 0.0079

Multiples of: 50

DDTD113ZC-7-F


Transistors Switching - Resistor Biased 200MW 1K 10K
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Diodes Incorporated Availability : 1795470
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USD 0.0375

Multiples of: 3000

2N7002


MOSFET N Trench 60V 115mA 2.5V @ 250uA 7.5 Ω @ 500mA,10V SOT-23 (SOT-23-3) RoHS
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Changjing Electronics Technology Availability : 1782666
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USD 0.0092

Multiples of: 50

BC858B-7-F


Bipolar Transistors - BJT PNP BIPOLAR
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Diodes Incorporated Availability : 1734360
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USD 0.0222

Multiples of: 3000

MMBT3904


Transistors (NPN/PNP) NPN 200mA 40V SOT-23 (SOT-23-3) RoHS
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Changjing Electronics Technology Availability : 1709472
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USD 0.0066

Multiples of: 50

BC846B,235


Bipolar (BJT) Transistor NPN 65 V 100 mA 100MHz 250 mW Surface Mount TO-236AB
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Nexperia Availability : 1649000
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USD 0.0086

Multiples of: 10000

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