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A transistor is a semiconductor device used to amplify and switch electronic signals and electrical power. It is composed of semiconductor material with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor's terminals changes the current flowing through another pair of terminals. Because the controlled output power can be higher than the controlling input power, a transistor can amplify a signal.

Bipolar transistors are so named because their operation involves both electrons and holes. These two kinds of charge carriers are characteristic of the two kinds of doped semiconductor material. In contrast, unipolar transistors such as the field-effect transistors have only one kind of charge carrier. NPN is one of the two types of bipolar transistors, consisting of a layer of P-doped semiconductor the "base" between two N-doped layers.

A small current entering the base is amplified to produce a large collector and emitter current. Login Register.

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Loging Electronics. NPN transistor BF Add to cart. On Stock. Description Specification Documents. Type NPN. Comments 0 Write your comment. Tell a friend. Related products. NPN transistor 2SC The customer is in the focus We want to make sure that customer is the center of attention. Free technical support If something goes wrong, we will be ready and willing to help! Comfort Flexible options, including door to door transportation.

Follow us. Add to cart On Stock. Collector - Base Voltage Vcbo. Collector - Emitter Voltage Vceo. Collector Current Ic. Power Dissipation Pd [Tamb. Package type. Follow us Help. About us. All rights reserved.


BF420 Bipolar Transistor



BF420 Datasheet


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