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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MMBTA42,215


Bipolar (BJT) Transistor NPN 300 V 100 mA 50MHz 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 : 343740
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USD 0.0231

Multiples of: 1

MMDT3904-7-F


Transistors Bipolar - BJT 40V 200mW
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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 : 340470
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USD 0.019

Multiples of: 3000

MMBT2222ALP4-7B


Diodes Incorporated Bipolar Transistors - BJT General Purpose Tran X2-DFN1006-3 T&R 10K
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Diodes Incorporated Availability : 339500
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USD 0.0385

Multiples of: 10000

MMBT3904FZ-7B


Diodes Incorporated Bipolar Transistors - BJT NPN 40Vceo 0.3W 200mW 300MHz
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Diodes Incorporated Availability : 339500
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USD 0.15

Multiples of: 10000

SI2302-HXY


20V 2.8A 55mΩ@4.5V,2.8A 0.9W N Channel SOT-23 MOSFETs ROHS
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HXY MOS Availability : 339357
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USD 0.0071

Multiples of: 50

CJ3407


MOSFET P Trench 30V 4.1A 3V @ 250uA 60 mΩ @ 4.1A,10V SOT-23 (SOT-23-3) RoHS
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Changjing Electronics Technology Availability : 336602
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USD 0.0292

Multiples of: 10

SI2312BDS-T1-BE3


MOSFET N-CHANNEL 20-V (D-S)
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Vishay Availability : 335562
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USD 0.2012

Multiples of: 1

MMBT2907A


20nA 300mW 600mA 100@150mA,10V 200MHz 1.6V@500mA,50mA PNP -55℃~+150℃@(Tj) SOT-23 Bipolar Transistors - BJT ROHS
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JSMSEMI Availability : 335268
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USD 0.0077

Multiples of: 50

MMDT5551-TP


Transistors Bipolar - BJT 200mA 160V
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Micro Commercial Components (MCC) Availability : 334650
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USD 0.0926

Multiples of: 3000

SS8550


25V 300mW 120@100mA,1.0V 1.5A PNP SOT-23 Bipolar Transistors - BJT ROHS
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hongjiacheng Availability : 332926
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USD 0.0064

Multiples of: 50

CMLDM3737 TR


MOSFET 20V Dual N-Ch FET 8.0Vgs 540mA 350mW
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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.

Central Semiconductor Availability : 332400
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USD 0.1612

Multiples of: 1

DDTC114WUA-7-F


Transistors Switching - Resistor Biased PRE-BIAS NPN 200mW
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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 : 331740
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USD 0.0307

Multiples of: 3000

2N5551RLRPG


Trans GP BJT NPN 160V 0.6A 3-Pin TO-92 Ammo
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ON Semiconductor Availability : 331740
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USD 0.0437

Multiples of: 2000

MMDT2222A-7-F


Transistors Bipolar - BJT 40V 200mW
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Diodes Incorporated Availability : 331740
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USD 0.0512

Multiples of: 3000

BCW66HR


Bipolar Transistors - BJT BCW66H/SOT23/TO-236A
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Nexperia Availability : 330718
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USD 0.0176

Multiples of: 1

FJX3014RTF


Transistors Switching - Resistor Biased NPN Si Transistor Epitaxial
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ON Semiconductor Availability : 325919
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USD 0.0385

Multiples of: 1

BSS315PH6327XTSA1


Transistor: P-MOSFET; unipolar; -30V; -1.5A; 0.5W; PG-SOT23
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Infineon Availability : 320100
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USD 0.0588

Multiples of: 3000

BC817-25,215


Transistors Bipolar - BJT NPN GP 500 45V
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Nexperia Availability : 318790
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USD 0.006

Multiples of: 50

BSS316NH6327XTSA1


Infineon Technologies MOSFET N-Ch 30V 1.4A SOT-23-3
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Infineon Availability : 305550
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USD 0.036

Multiples of: 3000

AO3400-HXY


30V 5.8A 28mΩ@10V,5.8A 1.4W N Channel SOT-23 MOSFETs ROHS
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HXY MOS Availability : 287556
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USD 0.0106

Multiples of: 50

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