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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MMBT3904LT1G


Bipolar Transistors - BJT NPN GENERAL PURPOSE
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ON Semiconductor Availability : 434705
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USD 0.0073

Multiples of: 50

MMBT5551LT1G


Bipolar Transistors - BJT 600mA 160V NPN
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ON Semiconductor Availability : 288478
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USD 0.0098

Multiples of: 50

PIMD2,115


Transistors Switching - Resistor Biased TRNS DOUBL RET TAPE7
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Nexperia Availability : 174600
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USD 0.097

Multiples of: 1

MMBT5401S


SOT-23 Bipolar Transistors - BJT ROHS
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FOSAN Availability : 174357
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USD 0.0043

Multiples of: 50

STB6N80K5


STMicroelectronics MOSFET
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STMicroelectronics Availability : 173630
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USD 1.072

Multiples of: 1000

BC548CTA


Transistors Bipolar - BJT NPN 30V 100mA HFE/8
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ON Semiconductor Availability : 172660
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USD 0.0411

Multiples of: 2000

S8550 2TY


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.

FOSAN Availability : 172187
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USD 0.0062

Multiples of: 50

ULN2003A


Darlington transistor array driver SOP-16 RoHS
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Youtai Availability : 171961
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USD 0.0529

Multiples of: 5

2302


20V 3A 45m 1.25W 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.

OSEN Availability : 169732
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USD 0.0069

Multiples of: 50

MMBT5551S


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.

FOSAN Availability : 169168
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USD 0.0043

Multiples of: 50

STN9260


Transistors Bipolar - BJT PNP Trans -600V High Volt 1.6W -0.5A
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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.

STMicroelectronics Availability : 168780
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USD 0.3408

Multiples of: 1000

MMBT3904T 1N


40V 200mW 100@10mA,1V 150mA NPN SOT-523-3 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 : 168091
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USD 0.0073

Multiples of: 50

LMUN2233LT1G


Digital Transistors NPN - Pre-Biased 100mA 50V SOT-23 (SOT-23-3) RoHS
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Leshan Availability : 167383
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USD 0.0093

Multiples of: 30

S9013


25V 300mW 500mA 150MHz 600mV@500mA,50mA NPN -55℃~+150℃@(Tj) 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.

JSMSEMI Availability : 102723
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USD 0.0037

Multiples of: 100

BSS138-7-F


Trans MOSFET N-CH 50V 0.2A Automotive 3-Pin SOT-23 T/R
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Diodes Incorporated Availability : 98590
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USD 0.0146

Multiples of: 20

BC817,215


Transistors Bipolar - BJT TRANS GP TAPE-7
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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.

Nexperia Availability : 339
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USD 0.0124

Multiples of: 50

PMBT2907,215


Bipolar (BJT) Transistor PNP 40 V 600 mA 200MHz 250 mW Surface Mount TO-236AB
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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.

Nexperia Availability : 38
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USD 0.028

Multiples of: 20

PMP5201G,115


Transistors Bipolar - BJT MATCHED PAIR
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Nexperia Availability : 0
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USD 0.1151

Multiples of: 3040

PMBT2222A,215


Bipolar (BJT) Transistor NPN 30 V 600 mA 300MHz 250 mW Surface Mount TO-236AB
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Nexperia Availability : 0
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USD 0.0054

Multiples of: 50

BSH105,215


N-Channel 20 V 1.05A (Ta) 417mW (Ta) Surface Mount TO-236AB
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Nexperia Availability : 0
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USD 0.1017

Multiples of: 3000

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