Bipolar Transistors

Bipolar Transistors are a solid state, three-pin devices made from three layers of silicon. A bipolar transistor 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 made

Bipolar transistors are constructed 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.

How do bipolar transistors work?

Bipolar transistors have 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.

Transistors 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.

They are also available as;

  • Digital transistors - are made of a semiconductor material, usually silicon, which conducts the current (or electricity) with little resistance. They also tend to have at least three terminals for easy connection to an external circuit.
  • UJT transistors - constructed of a bar of lightly dope N type silicone with a small piece of heavily doped P type material attached to one side. Since the silicon bar is lightly dope it has very high resistance.

Applications of bipolar transistors?

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).


...
Lees meer Lees minder

Filters

1 - 20 van 444 producten worden weergegeven
Resultaten per pagina
Omschrijving Prijs Transistor Type Maximum DC Collector Current Maximum Collector Emitter Voltage Package Type Mounting Type Maximum Power Dissipation Transistor Configuration Maximum Collector Base Voltage Maximum Emitter Base Voltage Maximum Operating Frequency Pin Count Number of Elements per Chip Dimensions Minimum Operating Temperature
RS-stocknr. 246-1845
FabrikantnummerDTB143EKT146
FabrikantROHM
€ 0,438
Each (In a Pack of 5)
Aantal stuks
PNP - - SMT Surface Mount - Single - - - 3 1 2.9 x 1.6 x 1.1mm -
RS-stocknr. 124-6530
FabrikantnummerDTA144EKAT146
FabrikantROHM
€ 0,053
Each (In a Pack of 150)
Aantal stuks
PNP - 50 V SOT-346 Surface Mount 200 mW - - - - 3 1 3 x 1.8 x 1.2mm -
RS-stocknr. 246-1722
FabrikantnummerDTA144EKAT146
FabrikantROHM
€ 0,036
Each (In a Pack of 5)
Aantal stuks
PNP - - SMT Surface Mount - Single - - - 3 1 2.9 x 1.6 x 1.1mm -
RS-stocknr. 246-1671
FabrikantnummerDTC143EKAT146
FabrikantROHM
€ 0,178
Each (In a Pack of 5)
Aantal stuks
NPN - - SMT Surface Mount - Single - - - 3 1 2.9 x 1.6 x 1.1mm -
RS-stocknr. 133-3196
FabrikantnummerEMZ1T2R
FabrikantROHM
€ 0,127
Each (In a Pack of 100)
Aantal stuks
NPN + PNP 150 mA 50 V SOT-563 Surface Mount 150 mW - 60 V 6 V 140 MHz 6 2 1.7 x 1.3 x 0.45mm -
RS-stocknr. 826-8431
Fabrikantnummer2SD1757KT146R
FabrikantROHM
€ 0,286
Each (In a Pack of 30)
Aantal stuks
NPN 500 mA 15 V SOT-346 (SC-59) Surface Mount 200 mW Single 30 V 6.5 V 100 MHz 3 1 2.9 x 1.6 x 1mm -
RS-stocknr. 826-8469
Fabrikantnummer2SD2226KT146W
FabrikantROHM
€ 0,341
Each (In a Pack of 40)
Aantal stuks
NPN 150 mA 50 V SOT-346 (SC-59) Surface Mount 200 mW Single 60 V 12 V 100 MHz 3 1 3 x 1.8 x 1.2mm -
RS-stocknr. 128-8828
Fabrikantnummer2SCR502UBTL
FabrikantROHM
€ 0,065
Each (In a Pack of 200)
Aantal stuks
NPN 500 mA 30 V SOT-323FL Surface Mount 200 mW Common Emitter 30 V 6 V 100 MHz 3 1 2.1 x 1.35 x 1mm -
RS-stocknr. 183-4805
FabrikantnummerDTC114EU3T106
FabrikantROHM
€ 0,053
Each (In a Pack of 200)
Aantal stuks
NPN - - SOT-323 Surface Mount 200 mW Single - - - 3 1 2.1 x 1.35 x 0.9mm -
RS-stocknr. 246-1895
FabrikantnummerDTD113ZKT146
FabrikantROHM
€ 0,41
Each (In a Pack of 5)
Aantal stuks
NPN - 50 V SOT-346 (SC-59) Surface Mount 200 mW Single - - - 3 1 2.9 x 1.6 x 1.1mm -
RS-stocknr. 826-8481
Fabrikantnummer2SD2654TLW
FabrikantROHM
€ 0,253
Each (In a Pack of 50)
Aantal stuks
NPN 150 mA 50 V SOT-416 (SC-75A) Surface Mount 200 mW Single 60 V 12 V 100 MHz 3 1 1.7 x 0.9 x 0.7mm -
RS-stocknr. 124-6434
Fabrikantnummer2SAR513PT100
FabrikantROHM
€ 0,176
Each (In a Pack of 30)
Aantal stuks
PNP 1 A 50 V SOT-89 Surface Mount 2 W Single -50 V -6 V 400 MHz 3 + Tab 1 4.7 x 2.7 x 1.4mm -
RS-stocknr. 146-7177
Fabrikantnummer2SAR514RTL
FabrikantROHM
€ 0,354
Each (In a Pack of 50)
Aantal stuks
PNP 700 mA 80 V SOT-346T (SC-96) Surface Mount 1 W Single -80 V -6 V 380 MHz 3 1 3 x 1.8 x 0.95mm -
RS-stocknr. 124-6561
FabrikantnummerDTC143ZMT2L
FabrikantROHM
€ 0,085
Each (In a Pack of 150)
Aantal stuks
NPN - 50 V SC-105AA Surface Mount 150 mW - - - - 3 1 1.3 x 0.9 x 0.45mm -
RS-stocknr. 171-5485
Fabrikantnummer2SAR572D3TL1
FabrikantROHM
€ 0,36
Each (In a Pack of 20)
Aantal stuks
PNP 5 A -30 V TO-252 Surface Mount 10 W Single -30 V -6 V 300 MHz 3 1 6.8 x 6.4 x 2.4mm -
RS-stocknr. 128-8836
Fabrikantnummer2SCR543RTL
FabrikantROHM
€ 0,408
Each (In a Pack of 25)
Aantal stuks
NPN 3 A 50 V SOT-346T (SC-96) Surface Mount 500 mW Common Emitter 50 V 6 V 100 MHz 3 1 3 x 1.8 x 0.95mm -
RS-stocknr. 133-3195
FabrikantnummerEMT1T2R
FabrikantROHM
€ 0,138
Each (In a Pack of 100)
Aantal stuks
PNP 150 mA 50 V SC-107C Surface Mount 150 mW - -50 V -6 V 140 MHz 6 2 1.7 x 1.3 x 0.45mm -
RS-stocknr. 826-8370
Fabrikantnummer2SB1698T100
FabrikantROHM
€ 0,357
Each (In a Pack of 20)
Aantal stuks
PNP 1.5 A 30 V SC-62 Surface Mount 2 W Single -30 V -6 V 100 MHz 3 1 4.7 x 2.7 x 1.4mm -
RS-stocknr. 171-5374
Fabrikantnummer2SAR572D3TL1
FabrikantROHM
€ 0,629
Each (On a Reel of 50)
Aantal stuks
PNP 5 A -30 V TO-252 Surface Mount 10 W Single -30 V -6 V 300 MHz 3 1 6.8 x 6.4 x 2.4mm -
RS-stocknr. 124-6562
FabrikantnummerDTC144EKAT146
FabrikantROHM
€ 0,053
Each (In a Pack of 150)
Aantal stuks
NPN - 50 V SOT-346 Surface Mount 200 mW - - - - 3 1 3 x 1.8 x 1.2mm -