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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Description Price 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 Stock No. 2508963410
Mfr. Part No.NTE379
PHP580.64
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RS Stock No. 2508962827
Mfr. Part No.NTE37
PHP361.00
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RS Stock No. 2508958137
Mfr. Part No.NTE2309
PHP390.64
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RS Stock No. 2508962423
Mfr. Part No.NTE2319
PHP564.68
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RS Stock No. 2508962243
Mfr. Part No.NTE199
PHP55.48
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RS Stock No. 2508956888
Mfr. Part No.NTE2321
PHP489.44
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RS Stock No. 2508957645
Mfr. Part No.NTE2365
PHP1,545.08
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RS Stock No. 2508962912
Mfr. Part No.NTE94
PHP318.44
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RS Stock No. 2508963460
Mfr. Part No.NTE386
PHP1,235.00
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RS Stock No. 2508956800
Mfr. Part No.NTE124
PHP195.32
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RS Stock No. 2508962849
Mfr. Part No.NTE51
PHP181.64
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RS Stock No. 2508955201
Mfr. Part No.NTE2501
PHP98.80
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RS Stock No. 2508962811
Mfr. Part No.NTE36
PHP361.76
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RS Stock No. 2508963022
Mfr. Part No.NTE194
PHP67.64
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RS Stock No. 2508963038
Mfr. Part No.NTE197
PHP132.24
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RS Stock No. 2508963189
Mfr. Part No.NTE280
PHP359.48
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RS Stock No. 2508957033
Mfr. Part No.NTE196
PHP140.60
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RS Stock No. 2508962439
Mfr. Part No.NTE2324
PHP566.96
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RS Stock No. 2508956967
Mfr. Part No.NTE162
PHP377.72
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RS Stock No. 2508963218
Mfr. Part No.NTE284
PHP841.32
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