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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PN2222A/RA


PN2222A/RA NPN GP TRANS MP T/HOLE
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ON Semiconductor Availability : 0
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USD 0.0886

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BFR505/T1


BFR505/T1 WIDEBAND TRANSISTOR SOT416
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NXP Availability : 0
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USD 0.0936

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714614AB


MPSA44 #0202 PCN12106 T/HOLE
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ON Semiconductor Availability : 0
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USD 0.1009

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BCV47/215


Darlington Transistors TRANS DARLINGTON
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NXP Availability : 0
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USD 0.1113

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PDTC114ET/T1


PDTC114ET/T1 DIGITAL TRANS SMD
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NXP Availability : 0
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USD 0.116

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BFS20/T1


BFS20/T1 MOVED TO 013556BB T/HOLE
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NXP Availability : 0
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USD 0.1171

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BC550C


BC550C LOOSE TRANSISTOR T/HOLE
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Taiwan Semiconductor Availability : 0
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USD 0.1198

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BF487


BF487 NPN TO92 400V 50MA SIGNA L TRA
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Philips Availability : 0
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USD 0.1225

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PN5434


PN5434 PN5434 T/HOLE
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ON Semiconductor Availability : 0
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USD 0.1232

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BC556/FSC


BC556 IN LINE PIN PNP
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USD 0.1234

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ZVP2106A


ZVP2106A T/REELED P Channel MOSFETs T/HOLE
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Diodes Incorporated Availability : 0
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USD 0.5684

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715123AB


2N7000 S.S NCH TMOS FE* T/HOLE
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ON Semiconductor Availability : 0
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USD 0.13

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2N3565


2N3565 TRANSISTOR T/HOLE
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Philips Availability : 0
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USD 0.1302

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2N5484


2N5484 N-CH FET JUNCTION VHF TRANS T/
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ON Semiconductor Availability : 0
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USD 0.1373

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BC338


BC338 25V 0.5A TO92 NPN BIP X TOR /
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ON Semiconductor Availability : 0
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USD 0.0944

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BDX53C


BDX53C TRANSISTOR TO220
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ON Semiconductor Availability : 0
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USD 0.2981

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PN4392


PN4392 TO-92 40V N-CH J-FET
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ON Semiconductor Availability : 0
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USD 0.1568

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BC109


BC109 LOOSE NPN TO18 20V 100MA LO NOI T/HO
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Central Semiconductor Availability : 0
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USD 0.1591

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BC640/116


BC640/116 Reel T092 PNP 80V ON RADIAL Reel T/
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Philips Availability : 0
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USD 0.1653

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2N5460


2N5460 DSP CHANNEL JFET TO T/HOLE
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Central Semiconductor Availability : 0
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USD 0.1681

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1 2345...

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