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 Prix 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
N° de stock RS 800-9320
Référence fabricant2SC5415AE-TD-E
0,444 €
Each (In a Pack of 25)
Unité
NPN 100 mA 12 V PCP Surface Mount 800 mW 90 Single 20 V 2 V 8 GHz 3 1 -
N° de stock RS 896-2625
Référence fabricant2SC2712-Y,LF(T
MarqueToshiba
0,066 €
Each (In a Pack of 50)
Unité
NPN 150 mA 50 V TO-236MOD Surface Mount 150 mW 70 Single 60 V 5 V 80 MHz 3 1 -
N° de stock RS 145-4171
Référence fabricant2SC5415AE-TD-E
0,215 €
Each (On a Reel of 1000)
Unité
NPN 100 mA 12 V PCP Surface Mount 800 mW 90 Single 20 V 2 V 8 GHz 3 1 -
N° de stock RS 146-2100
Référence fabricantBC556BTFR
0,032 €
Each (On a Reel of 2000)
Unité
PNP 100 mA 65 V TO-92 Through Hole 500 mW 110 Single -80 V -5 V 10 MHz 3 1 -
N° de stock RS 124-1732
Référence fabricantBC33740TA
0,04 €
Each (On a Reel of 2000)
Unité
NPN 800 mA 45 V TO-92 Through Hole 625 mW 170 Single - 5 V 100 MHz 3 1 -
N° de stock RS 922-8525
Référence fabricantZXTN2031FTA
MarqueDiodesZetex
0,302 €
Each (On a Reel of 3000)
Unité
NPN 5 A 50 V SOT-23 Surface Mount 1.56 W 80 Single 80 V 7 V 125 MHz 3 1 -
N° de stock RS 739-0331
Référence fabricantKSP2907ATA
0,168 €
Each (In a Pack of 10)
Unité
PNP 600 mA 60 V TO-92 Through Hole 625 mW 50 Single -60 V -5 V - 3 1 -
N° de stock RS 761-9831
Référence fabricantBC556BTA
0,052 €
Each (In a Pack of 100)
Unité
PNP 100 mA 65 V TO-92 Through Hole 500 mW 110 Single -80 V -5 V 150 MHz 3 1 -
N° de stock RS 177-5498
Référence fabricant2N2369ACSM
MarqueSemelab
21,667 €
Each (In a Tray of 100)
Unité
NPN 200 mA 15 V LCC 1 Surface Mount 360 mW 40 Single 40 V 4.5 V - 3 1 -
N° de stock RS 145-5536
Référence fabricantKSP2907ATA
0,038 €
Each (On a Tape of 2000)
Unité
PNP 600 mA 60 V TO-92 Through Hole 625 mW 50 Single -60 V -5 V - 3 1 -
N° de stock RS 671-1119
Référence fabricantBC33740TA
0,181 €
Each (In a Pack of 10)
Unité
NPN 800 mA 45 V TO-92 Through Hole 625 mW 170 Single - 5 V 100 MHz 3 1 -
N° de stock RS 166-1220
Référence fabricantBFS20,215
MarqueNexperia
0,091 €
Each (On a Reel of 3000)
Unité
NPN 25 mA 20 V SOT-23 (TO-236AB) Surface Mount 250 mW 40 Single 30 V 4 V 450 MHz 3 1 -
N° de stock RS 751-5411
Référence fabricantZXTN2031FTA
MarqueDiodesZetex
0,561 €
Each (In a Pack of 10)
Unité
NPN 5 A 50 V SOT-23 Surface Mount 1.56 W 80 Single 80 V 7 V 125 MHz 3 1 -
N° de stock RS 803-1131
Référence fabricantBC556BTFR
0,061 €
Each (In a Pack of 200)
Unité
PNP 100 mA 65 V TO-92 Through Hole 500 mW 110 Single -80 V -5 V 10 MHz 3 1 -
N° de stock RS 436-8079
Référence fabricantBFS20,215
MarqueNexperia
0,259 €
Each (In a Pack of 25)
Unité
NPN 25 mA 20 V SOT-23 (TO-236AB) Surface Mount 250 mW 40 Single 30 V 4 V 450 MHz 3 1 -
N° de stock RS 738-7581
Référence fabricant2N2369ACSM
MarqueSemelab
23,83 €
Each
Unité
NPN 200 mA 15 V LCC 1 Surface Mount 360 mW 40 Single 40 V 4.5 V - 3 1 -
N° de stock RS 166-3072
Référence fabricantBC556BTA
0,032 €
Each (On a Tape of 2000)
Unité
PNP 100 mA 65 V TO-92 Through Hole 500 mW 110 Single -80 V -5 V 10 MHz 3 1 -
N° de stock RS 102-4110
Référence fabricantBD139-16
0,301 €
Each (In a Tube of 50)
Unité
NPN 3 A 80 V SOT-32 Through Hole 1.25 W 100 Single 80 V 5 V - 3 1 -
N° de stock RS 686-8063
Référence fabricantBD139-16
0,332 €
Each (In a Pack of 20)
Unité
NPN 3 A 80 V SOT-32 Through Hole 1.25 W 100 Single 80 V 5 V - 3 1 -
N° de stock RS 314-1817
Référence fabricantBD140
2,22 €
Each
Unité
PNP 3 A 80 V SOT-32 Through Hole 1.25 W 25 Single 80 V 5 V - 3 1 -