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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BC81840


BC81840 SEMIS NON STOCKED T/HOLE
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ON Semiconductor Availability : 970
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AUD 0.1071

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BC857B/215


BC857B/215 SOT23 PNP SMALL SIG TRANS MARK
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NXP Availability : 0
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AUD 0.0242

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BC857/215


BC857/215 SOT23 PNP SMALL SIG TRANS MARK
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NXP Availability : 0
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AUD 0.0243

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BC857C/215


BC857C/215 SOT-23 PNP 45V ON Reel SMD
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NXP Availability : 0
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AUD 0.0246

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BF199


BF199 SS TRANS TO92 PREF T/HOLE
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NXP Availability : 0
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AUD 0.027

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BC557/116


BC557/116 TAPE AND Reel TO-92 PNP 45V ON RADIAL Reel T
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ON Semiconductor Availability : 0
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AUD 0.0296

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BC557


Bipolar Transistors - BJT PNP -45V -100mA HFE/800
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ON Semiconductor Availability : 0
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AUD 0.0324

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BC849/BULKL


BC849/BULKL SOT23 GP TRANS 2B SMD
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NXP Availability : 0
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AUD 0.0387

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BC547C/B


BC547C/B #2401 PCN200001001S T/HOLE
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AUD 0.0416

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BC546


Bipolar Transistors - BJT NPN 65V 100mA HFE/8
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ON Semiconductor Availability : 0
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AUD 0.0424

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BCX70H/T1


BCX70H/T1 S.S TRANSISTOR SMD
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AUD 0.0486

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BC639-16ZL1G


BC639-16ZL1G TO-92 80V LF TRANS RADIAL AMMO
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ON Semiconductor Availability : 0
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AUD 0.0583

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BC850


BC850 SOT23 MICROMIN TRANS ON Reel
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NXP Availability : 0
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AUD 0.0594

Multiples of: 1

BC847C/T1


BC847C/T1 USE 405048FB SMD
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Taiwan Semiconductor Availability : 0
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AUD 0.0657

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715007RB


BC639 LOOSE/DELTA PINS TO92 800MW NPN 80V 1 T/HOLE
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AUD 0.0852

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2N3904G


2N3904G ROHS NPN TO92 60V SWITCHING TRANS T
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Central Semiconductor Availability : 0
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AUD 0.0888

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BC337-25/116


TO-92 NPN 45V RADIAL Reel T/HO Reel
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ON Semiconductor Availability : 0
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AUD 0.1008

Multiples of: 1

BC547C-FSC


Bipolar Small Signal NPN 45V 100mA HFE/8
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ON Semiconductor Availability : 0
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AUD 0.104

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BC547-112


BC547 100MA 45V SOT54 VARIANT PKGE DELTA PIN T/HOLE LOOSE
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Central Semiconductor Availability : 0
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AUD 0.1092

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MPSA75


MPSA75 E-LINE TRANS T/HOLE
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ON Semiconductor Availability : 0
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AUD 0.1125

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