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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BCV47/215


Darlington Transistors TRANS DARLINGTON
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NXP Availability : 15000
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USD 0.1078

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BC856B/215


BC856B/215 SOT23 PNP SMALL SIG TRANS MARK
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Taiwan Semiconductor Availability : 9000
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USD 0.0081

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BC856A


BC856A T/R TRANSITOR
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NXP Availability : 8900
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USD 0.013

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BC846BT,115


TRANSISTOR NPN 100MA 65V SOT41 6
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NXP Availability : 6000
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USD 0.0256

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BFS17A,215


Trans GP BJT NPN 15V 0.025A 3-Pin TO-236AB TR
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NXP Availability : 5500
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USD 0.0729

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PZTA42-E6327


PZTA42-E6327 SOT223 TRANSISTOR SMD
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ON Semiconductor Availability : 4560
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USD 0.3047

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BC849CLT1G


Bipolar (BJT) Transistor NPN 30 V 100 mA 100MHz 300 mW Surface Mount SOT-23-3 (TO-236)
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ON Semiconductor Availability : 3000
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USD 0.0102

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BC857B/215


BC857B/215 SOT23 PNP SMALL SIG TRANS MARK
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NXP Availability : 3000
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USD 0.0148

Multiples of: 1

Hot PN2907ATA


Bipolar (BJT) Transistor PNP 60 V 800 mA 200MHz 625 mW Through Hole TO-92-3
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ON Semiconductor Availability : 3000
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USD 0.0306

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TBC859-B(T5L


TBC859-B(T5L M) LTB 13-2-98 SMD
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Toshiba Availability : 3000
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USD 0.0463

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BCX70J/215


BCX70J/215 SOT23 45V 200MW PNP TRANS MARK
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ON Semiconductor Availability : 3000
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USD 0.0547

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PMBT6429/T1


PMBT6429/T1 A.G MANUFACTURING T/HOLE
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NXP Availability : 3000
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USD 0.0576

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BCX17LT1


BCX17LT1 SOT23 MED POWER TRAN
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ON Semiconductor Availability : 2990
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USD 0.0249

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BFR505/T1


BFR505/T1 WIDEBAND TRANSISTOR SOT416
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NXP Availability : 2700
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USD 0.0906

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BSR16/215


BSR16/215 SOT23 PNP EPITAXIAL TRANS SMD
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ON Semiconductor Availability : 2660
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USD 0.067

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004419CB


FMMT493TA TRANSISTORS - SOT 23 SMD
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Diodes Incorporated Availability : 2440
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USD 0.1687

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BC63916_D74Z


Transistors Bipolar - BJT TO-92 NPN GP AMP
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ON Semiconductor Availability : 2268
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USD 0.0616

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PN200


PN200 SMALL TRANSISTOR T/R T/HOLE
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ON Semiconductor Availability : 2254
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USD 0.1324

Multiples of: 1

FMMT38CTA


FMMT38CTA SOT23 TRANS 7J SMD
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Diodes Incorporated Availability : 2150
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USD 0.0652

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MMJT9435T1


MMJT9435T1G (ROHS COMPLIANT) NPN BIPOLAR 3A 30V SOT223
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ON Semiconductor Availability : 2000
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USD 0.2139

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