BJT & Bipolar Transistors

A Bipolar Transistor or BJT (Bipolar Junction Transistor) is a solid state, three-pin device made from three layers of silicon. A BJT is designed to amplify current, bipolar transistors can also function as a switch. There are two main types of transistor, PNP (positive negative positive) or NPN (negative positive negative).How a Bipolar transistor is madeA bipolar transistor is made by joining two signal diodes back to back creating two PN junctions connected in series, sharing a common P or N terminal. By nature, silicon does not normally conduct electricity well. However, when silicon is treated with certain chemicals or impurities we can make the material and electrons behave in a different way. This process is called doping. The doping process improves the semiconductors ability to conduct electricity.What does a bipolar transistor do?As we said before a bipolar transistor has two possible functions, switching, and amplification. Due to the devices three layers of doped semiconductor material, supplying the transistor with a signal voltage enables the discrete component to act as an insulator or a conductor. This clever change provides the transistors with two basic functions, switching (digital) electronics or amplification (analog) electronics.Types of transistorTransistors are available in panel, surface and through hole mounting options in plastic package or metal can versions. All have three terminals or pins, the Base, the Collector, and the Emitter.Where are bipolar transistors used?Transistors are one of the most widely used discrete components in electronic designs and circuits. Transistors are used for the amplification of all types of electrical signals in circuits made up of individual components rather than ICs (integrated circuits).

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Beskrivning Pris Transistor Type Maximum DC Collector Current Maximum Collector Emitter Voltage Package Type Mounting Type Maximum Power Dissipation Minimum DC Current Gain Transistor Configuration Maximum Collector Base Voltage Maximum Emitter Base Voltage Maximum Operating Frequency Pin Count Number of Elements per Chip Automotive Standard
RS-artikelnummer 912-9563
Tillv. art.nrMAT01GHZ
VarumärkeAnalog Devices
149,688 kr
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NPN 25 mA 45 V TO-78 Through Hole 500 mW 250 Isolated - - 450 MHz 6 2 -
RS-artikelnummer 802-3666
Tillv. art.nrMAT12AHZ
VarumärkeAnalog Devices
270,39 kr
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NPN 20 mA 10 V TO-78 Through Hole - 200 Isolated 15 V - 200 MHz 6 2 -
RS-artikelnummer 159-8033
Tillv. art.nrMAT01AHZ
VarumärkeAnalog Devices
212,064 kr
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NPN 25 mA 45 V TO-78 Through Hole 500 mW 500 Isolated 45 V - 450 MHz 6 2 -
RS-artikelnummer 160-0658
Tillv. art.nrMAT12AHZ
VarumärkeAnalog Devices
217,528 kr
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NPN 20 mA 10 V TO-78 Through Hole - 200 Isolated 15 V - 200 MHz 6 2 -
RS-artikelnummer 160-0656
Tillv. art.nrMAT14ARZ
VarumärkeAnalog Devices
75,29 kr
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NPN 30 mA 40 V SOIC Surface Mount - 200 Isolated 40 V - 1 kHz 14 4 -
RS-artikelnummer 912-8116
Tillv. art.nrSSM2212RZ
VarumärkeAnalog Devices
48,934 kr
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NPN 20 mA 10 V SOIC Surface Mount - 200 Isolated 15 V - 10 kHz 8 2 -
RS-artikelnummer 802-3660
Tillv. art.nrMAT14ARZ
VarumärkeAnalog Devices
116,01 kr
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NPN 30 mA 40 V SOIC Surface Mount - 200 Isolated 40 V - 1 kHz 14 4 -
RS-artikelnummer 709-8518
Tillv. art.nrMAT01AHZ
VarumärkeAnalog Devices
209,18 kr
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NPN 25 mA 45 V TO-78 Through Hole 500 mW 500 Isolated 45 V - 450 MHz 6 2 -
RS-artikelnummer 709-8512
Tillv. art.nrMAT01GHZ
VarumärkeAnalog Devices
162,65 kr
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NPN 25 mA 45 V TO-78 Through Hole 500 mW 250 Isolated - - 450 MHz 6 2 -
RS-artikelnummer 802-3679
Tillv. art.nrSSM2212RZ
VarumärkeAnalog Devices
61,42 kr
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NPN 20 mA 10 V SOIC Surface Mount - 200 Isolated 15 V - 10 kHz 8 2 -