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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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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BC556/112


BC556/112 IMI PACTROL TRANS.
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USD 0.0187

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BC557


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

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BC547


TRANS NPN 45V 100MA TO-92 ELECTRONICS PART
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Generic Availability : 0
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USD 0.1059

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BC556/116


BC556/116 TAPE AND Reel PNP TO92 65V RADIAL Reel T/HOL
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Central Semiconductor Availability : 0
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USD 0.0217

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715083GB


MPSA42G NPNTRANS.VCEO* LOOSE STOCK
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USD 0.0238

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BC557B


BC557B TO-92 PNP 45V RADIAL
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USD 0.0315

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BC849/BULKL


BC849/BULKL SOT23 GP TRANS 2B SMD
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NXP Availability : 0
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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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BC546


Bipolar Transistors - BJT NPN 65V 100mA HFE/8
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USD 0.0525

Multiples of: 8013

BC546/116


BC546/116 - TAPE TO-92 NPN 65V 1W RADIAL TAPE
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USD 0.0272

Multiples of: 1

BC559C


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

Multiples of: 1

BCX70H/T1


BCX70H/T1 S.S TRANSISTOR SMD
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USD 0.0306

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BCX71H/T1


BCX71H/T1 SOT23 S.S TRANSIST SMD
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ROHM Availability : 0
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USD 0.0306

Multiples of: 1

715119DB


2N4401 NPN TRANS VCEO=40V T/HOLE Reel
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Central Semiconductor Availability : 0
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USD 0.0337

Multiples of: 1

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

Multiples of: 1

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

Multiples of: 1

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