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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BC857C/215


BC857C/215 SOT-23 PNP 45V ON Reel SMD
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USD 0.0155

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BC557/116


BC557/116 TAPE AND Reel TO-92 PNP 45V ON RADIAL Reel T
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USD 0.0186

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BC849/BULKL


BC849/BULKL SOT23 GP TRANS 2B SMD
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USD 0.0244

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BCX17LT1


BCX17LT1 SOT23 MED POWER TRAN
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USD 0.0257

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BC547C/B


BC547C/B #2401 PCN200001001S T/HOLE
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USD 0.0262

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BC559C


BC559C TO92 GP PNP 30V 380- T/HOLE
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USD 0.0301

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BCX70H/T1


BCX70H/T1 S.S TRANSISTOR SMD
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USD 0.0306

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BC639-16ZL1G


BC639-16ZL1G TO-92 80V LF TRANS RADIAL AMMO
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USD 0.0367

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BC850


BC850 SOT23 MICROMIN TRANS ON Reel
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NXP Availability : 0
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USD 0.0374

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MPSA63ZL1


MPSA63ZL1 MPSA63ZL1 T/HOLE
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USD 0.0409

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BC847C/T1


BC847C/T1 USE 405048FB SMD
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Taiwan Semiconductor Availability : 0
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USD 0.0414

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MPSA43


MPSA43 #0202 PCN12106
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USD 0.0423

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BF199


BF199 SS TRANS TO92 PREF T/HOLE
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NXP Availability : 0
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USD 0.0524

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715007RB


BC639 LOOSE/DELTA PINS TO92 800MW NPN 80V 1 T/HOLE
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USD 0.0537

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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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USD 0.0559

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BCX70J/215


BCX70J/215 SOT23 45V 200MW PNP TRANS MARK
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USD 0.0564

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2N4124


2N4124 TRANSISTOR T/HOLE
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Central Semiconductor Availability : 0
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USD 0.0597

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BC557


Bipolar Transistors - BJT PNP -45V -100mA HFE/800
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USD 0.0624

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BC337-25/116


TO-92 NPN 45V RADIAL Reel T/HO Reel
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USD 0.0635

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BC547C-FSC


Bipolar Small Signal NPN 45V 100mA HFE/8
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ON Semiconductor Availability : 0
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USD 0.0655

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