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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Omschrijving Prijs 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-stocknr. 436-7953
FabrikantnummerBC847,215
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0,012 €
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NPN 100 mA 45 V SOT-23 (TO-236AB) Surface Mount 250 mW 110 Single 50 V 6 V 100 MHz 3 1 -
RS-stocknr. 170-8059
FabrikantnummerBC847,235
FabrikantNexperia
0,016 €
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Aantal stuks
NPN 100 mA 45 V TO-236 Surface Mount 250 mW 110 Single 50 V 6 V - 3 1 AEC-Q101
RS-stocknr. 178-7142
FabrikantnummerBC847,215
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0,006 €
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- - - - - - - - - - - - - -
RS-stocknr. 484-5100
FabrikantnummerBC857,215
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0,103 €
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Aantal stuks
PNP 100 mA 45 V SOT-23 (TO-236AB) Surface Mount 250 mW 125 Single 50 V 5 V 100 MHz 3 1 -
RS-stocknr. 178-7163
FabrikantnummerBC857,215
FabrikantNexperia
0,023 €
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Aantal stuks
PNP 100 mA 45 V SOT-23 (TO-236AB) Surface Mount 250 mW 125 Single 50 V 5 V 100 MHz 3 1 -
RS-stocknr. 166-1220
FabrikantnummerBFS20,215
FabrikantNexperia
0,091 €
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NPN 25 mA 20 V SOT-23 (TO-236AB) Surface Mount 250 mW 40 Single 30 V 4 V 450 MHz 3 1 -
RS-stocknr. 436-8079
FabrikantnummerBFS20,215
FabrikantNexperia
0,259 €
Each (In a Pack of 25)
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NPN 25 mA 20 V SOT-23 (TO-236AB) Surface Mount 250 mW 40 Single 30 V 4 V 450 MHz 3 1 -
RS-stocknr. 166-1312
FabrikantnummerBC857C,215
FabrikantNexperia
0,022 €
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PNP 100 mA 45 V SOT-23 (TO-236AB) Surface Mount 250 mW 420 Single 50 V 5 V 100 MHz 3 1 -
RS-stocknr. 508-236
FabrikantnummerBC857C,215
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0,038 €
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Aantal stuks
PNP 100 mA 45 V SOT-23 (TO-236AB) Surface Mount 250 mW 420 Single 50 V 5 V 100 MHz 3 1 -
RS-stocknr. 170-7962
FabrikantnummerBC857C,235
FabrikantNexperia
0,016 €
Each (On a Reel of 10000)
Aantal stuks
PNP 100 mA -45 V SOT-23 Surface Mount 250 mW 420 Single -50 V -5 V - 3 1 AEC-Q101
RS-stocknr. 103-7552
FabrikantnummerBC847C,215
FabrikantNexperia
0,023 €
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Aantal stuks
NPN 100 mA 45 V SOT-23 (TO-236AB) Surface Mount 250 mW 420 Single 50 V 6 V 100 MHz 3 1 -
RS-stocknr. 436-7903
FabrikantnummerBC817-25,215
FabrikantNexperia
0,108 €
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NPN 500 mA 45 V SOT-23 (TO-236AB) Surface Mount 250 mW 40 Single 50 V 5 V 100 MHz 3 1 -
RS-stocknr. 146-0502
FabrikantnummerBC856BS,115
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0,039 €
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PNP 100 mA 65 V SOT-363 (SC-88) Surface Mount 300 mW 200 Isolated -80 V -6 V - 6 2 -
RS-stocknr. 484-5065
FabrikantnummerBC847C,215
FabrikantNexperia
0,102 €
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Aantal stuks
NPN 100 mA 45 V SOT-23 (TO-236AB) Surface Mount 250 mW 420 Single 50 V 6 V 100 MHz 3 1 -
RS-stocknr. 792-0822
FabrikantnummerBC856BS,115
FabrikantNexperia
0,071 €
Each (On a Reel of 100)
Aantal stuks
PNP 100 mA 65 V SOT-363 (SC-88) Surface Mount 300 mW 200 Isolated -80 V -6 V - 6 2 -
RS-stocknr. 509-712
FabrikantnummerBCW30,215
FabrikantNexperia
0,061 €
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PNP 100 mA 32 V SOT-23 (TO-236AB) Surface Mount 250 mW 215 Single 32 V 5 V 100 MHz 3 1 -
RS-stocknr. 436-7919
FabrikantnummerBC817-40,215
FabrikantNexperia
0,106 €
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NPN 500 mA 45 V SOT-23 (TO-236AB) Surface Mount 250 mW 40 Single 50 V 5 V 100 MHz 3 1 -
RS-stocknr. 816-7722
FabrikantnummerBC847W
FabrikantNexperia
0,044 €
Each (In a Pack of 300)
Aantal stuks
NPN 100 mA 45 V SOT-323 (SC-70) Surface Mount 200 mW 90 Single 50 V 6 V 100 MHz 3 1 -
RS-stocknr. 178-7042
FabrikantnummerBCP52-16,115
FabrikantNexperia
0,089 €
Each (On a Reel of 1000)
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PNP 1 A 60 V SOT-223 Surface Mount 1 W 100 Single 60 V 5 V 145 MHz 3 + Tab 1 -
RS-stocknr. 303-1596
FabrikantnummerBC847BW,115
FabrikantNexperia
0,22 €
Each (In a Pack of 10)
Aantal stuks
NPN 100 mA 45 V UMT Surface Mount 200 mW 200 Single 50 V 6 V 100 MHz 3 1 -