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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BF459


BF459 TRANSISTOR T/HOLE
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STMicroelectronics Availability : 0
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by Fri. 22 Nov
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USD 0.2638

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2N2369A/B


2N2369A/B LTB 30/06/098 B T/HOLE
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Central Semiconductor Availability : 0
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by Fri. 22 Nov
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USD 0.2835

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BSR31/T1


BSR31/T1 #4701 PCN20010104F SMD
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NXP Availability : 0
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by Fri. 22 Nov
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USD 0.2852

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BDX53C


BDX53C TRANSISTOR TO220
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ON Semiconductor Availability : 0
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by Fri. 22 Nov
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USD 0.2981

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IRF540


IRF540N HEXFET POWER MOSFET T/HOLE
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Infineon Availability : 0
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by Fri. 22 Nov
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USD 0.3062

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2N2905


2N2905 GET QUOTE T/HOLE
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Microchip Availability : 0
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by Fri. 22 Nov
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USD 0.3088

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BF859


BF859 TO220 300V LF POWER TRANS T/HO
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Philips Availability : 0
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by Fri. 22 Nov
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USD 0.3125

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012111XB


ZVP2110A TRANSISTORS-M*
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Diodes Incorporated Availability : 0
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by Fri. 22 Nov
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USD 0.3151

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BFY90


RF Bipolar Transistors Bipolar/LDMOS Transistor
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Microchip Availability : 0
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by Fri. 22 Nov
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USD 0.3266

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ULN2003A-ST


Darlington Transistors Seven NPN DRIVER Array PDIP-16
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STMicroelectronics Availability : 0
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by Fri. 22 Nov
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USD 0.3473

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MCT1413P


MCT1413P IC DIP
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Motorola Availability : 0
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by Fri. 22 Nov
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USD 0.3649

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ULN2803


Darlington Transistors Eight NPN Array
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STMicroelectronics Availability : 0
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by Fri. 22 Nov
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USD 0.3912

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PMV32UP215


MOSFET P-CH -20 V -4 A
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Generic Availability : 0
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by Fri. 22 Nov
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USD 0.4067

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BF256A


BF256A N-CHNL TO92 30V FET (3-7M T/HO
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ON Semiconductor Availability : 0
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by Fri. 22 Nov
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USD 0.4367

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IRF740


IRF740 HEXFET T/HOLE
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Vishay Availability : 0
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by Fri. 22 Nov
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USD 0.4397

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ULN2803A/SGS


ULN2803A/SGS LINEAR 8* DARL ARRAY DIP
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STMicroelectronics Availability : 0
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by Fri. 22 Nov
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USD 0.4541

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ULN2003AD/CUT


ULN2003AD DARLINGTON DRIVER SO-16 SMD
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Texas Instruments Availability : 0
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by Fri. 22 Nov
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USD 0.4715

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417095EB


RFD14N05 PWR MOS 50V/14A/0.1 T/HOLE
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ON Semiconductor Availability : 0
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by Fri. 22 Nov
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USD 0.4879

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FZT653TA


FZT653TA USE 069120XB SMD
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Diodes Incorporated Availability : 0
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by Fri. 22 Nov
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USD 0.5155

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TIP115


TIP115 TO220 PKGE PNP PWR TRANS VCEO=6 T/HOLE
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ON Semiconductor Availability : 0
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by Fri. 22 Nov
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USD 0.5255

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