About Transistors

?Ourns 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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IRF640N


IRF640N HEXFET
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Infineon Availability : 1543
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USD 0.4082

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ULN2003ADR/CUT


ULN2003ADR Reel DARLINGTON DRIVER SO-16 SMD
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Texas Instruments Availability : 1262
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USD 0.3062

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FMMT591ATA


FMMT591ATA TRANSISTORS SOT 23
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Diodes Incorporated Availability : 1253
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USD 0.388

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Hot 2N5210


Transistors Bipolar - BJT NPN Gen Pur SS
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Central Semiconductor Availability : 1228
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USD 0.0493

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Hot NTGS3443T1G


MOSFET 20V 2A P-Channel
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ON Semiconductor Availability : 1100
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USD 0.0869

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Hot 2N4403


Transistors Bipolar - BJT PNP Gen Pur SS
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Central Semiconductor Availability : 1089
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USD 0.0241

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NTD3055L104T4G


ON Semiconductor MOSFET 60V 12A N-Channel
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ON Semiconductor Availability : 1050
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USD 0.25

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BC640/116


BC640/116 Reel T092 PNP 80V ON RADIAL Reel T/
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Philips Availability : 1006
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USD 0.1653

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BCX71H/T1


BCX71H/T1 SOT23 S.S TRANSIST SMD
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ROHM Availability : 1000
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USD 0.0306

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BC81840


BC81840 SEMIS NON STOCKED T/HOLE
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ON Semiconductor Availability : 1000
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USD 0.0675

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BD132


BD132 PNP TO126 45V 3A POWER T RANS
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Philips Availability : 999
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USD 0.6027

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BC327-25/LOOSE


BC327 800MA TO-92 PNP 45V T/HOLE STRAIGHT LEG LOOSE
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ON Semiconductor Availability : 872
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USD 0.0612

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BC547BTA


Transistor: NPN; bipolar; 45V; 0.1A; 500mW; TO92
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Generic Availability : 840
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USD 0.0281

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VN1206L


VN1206L TRANSISTOR
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Teccor Availability : 806
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USD 0.9355

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BAX18/A52R


BAX18/A52R AXIAL SWITCH DIODE T/HOLE
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Philips Availability : 800
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USD 0.0679

Multiples of: 1

BC556/116


BC556/116 TAPE AND Reel PNP TO92 65V RADIAL Reel T/HOL
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Central Semiconductor Availability : 770
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USD 0.0217

Multiples of: 1

2N5551


Trans GP BJT NPN 160V 0.6A 3-Pin TO-92 Bulk
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ON Semiconductor Availability : 767
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USD 0.0659

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IRLL014NPBF


MOSFET N Trench 55V 2A 2V @ 250uA 140 mΩ @ 2A,10V SOT-223 RoHS
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Infineon Availability : 766
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USD 0.174

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SS9015CBU


Bipolar (BJT) Transistor PNP 45V 100mA 190MHz 450mW Through Hole TO-92-3
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ON Semiconductor Availability : 735
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USD 0.0731

Multiples of: 1

BC547B


Transistors Bipolar - BJT NPN 45V 100mA HFE/45
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ON Semiconductor Availability : 724
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USD 0.0539

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