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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SI7137DP-T1-GE3


Vishay Semiconductors MOSFET -20V 1.95mOhm10V 60A P-Ch G-III
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Vishay 44782
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AUD 0.687
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SQ4917EY-T1_BE3


MOSFET Dual P-CHANNEL 60 V
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Vishay 33523
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AUD 1.3654
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DMP31D1U-7


MOSFETs MOSFET BVDSS: 25V-30V SOT23 T&R 3K
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Diodes Incorporated 33494
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AUD 0.0312
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KSP13TA


Transistor: NPN; bipolar; Darlington; 30V; 0.5A; 625mW; TO92
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ON Semiconductor 33468
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AUD 0.0855
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FMMT720


Transistors (NPN/PNP) PNP 1.5A 40V SOT-23 (SOT-23-3) RoHS
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Changjing Electronics Technology 33435
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AUD 0.0459
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MMBTA92,215


Bipolar (BJT) Transistor PNP 300 V 100 mA 50MHz 250 mW Surface Mount TO-236AB
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Nexperia 33329
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AUD 0.033
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MMBT5551


300mW 300 600mA 160V SOT-23 Single Bipolar Transistors RoHS
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Shandong Baocheng 33319
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AUD 0.0098
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MMBT3906


Transistors (NPN/PNP) PNP 200mA 40V SOT-23 (SOT-23-3) RoHS
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Semtech 33125
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AUD 0.0085
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AO4468


30V 10A 12mΩ@10V,10A 2.5W 3V@250uA N Channel SOP-8 MOSFETs ROHS
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JSMSEMI 33081
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AUD 0.0976
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MMUN2111LT1G


Bipolar Transistors - Pre-Biased 100mA 50V BRT PNP
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ON Semiconductor 20467
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AUD 0.0204
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