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    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).

    5340 Produkter som visas för Bipolar Transistors

    • RS-artikelnummer 219-4303
    • Tillv. art.nr BC807-25,235
    Var (i ett paket med 200)
    0,349 kr
    Nexperia
    PNP
    -500 mA
    -45 V
    SOT-23
    Surface Mount
    -
    160
    -
    -
    -
    -
    3
    1
    • RS-artikelnummer 166-3239
    • Tillv. art.nr KSC2690AYS
    Var (i en påse med 2000)
    3,145 kr
    onsemi
    NPN
    1.2 A
    160 V
    TO-126
    Through Hole
    20 W
    160
    Single
    160 V
    5 V
    -
    3
    1
    • RS-artikelnummer 801-0046
    • Tillv. art.nr DTA114EM3T5G
    Var (i en tejp med 200)
    0,357 kr
    onsemi
    PNP
    -100 mA
    -50 V
    SOT-723
    Surface Mount
    338 mW
    -
    Single
    -
    6 V
    -
    3
    1
    • RS-artikelnummer 790-5343
    • Tillv. art.nr MJD340G
    Var (i ett paket med 15)
    6,417 kr
    onsemi
    NPN
    500 mA
    300 V
    DPAK (TO-252)
    Surface Mount
    15 W
    30
    Single
    300 V dc
    3 V
    10 MHz
    3
    1
    Var (i ett paket med 25)
    3,593 kr
    STMicroelectronics
    PNP
    -1.5 A
    -30 V
    SOT-23
    Surface Mount
    500 mW
    170
    Single
    30 V
    5 V
    100 MHz
    3
    1
    • RS-artikelnummer 739-0439P
    • Tillv. art.nr 2N4401BU
    Varje (levereras i en påse)
    2,229 kr
    onsemi
    NPN
    600 mA
    40 V
    TO-92
    Through Hole
    625 mW
    -
    Single
    60 V
    6 V
    -
    3
    1
    • RS-artikelnummer 761-3701P
    • Tillv. art.nr MPSA42
    Varje (levereras i en påse)
    2,599 kr
    onsemi
    NPN
    500 mA
    300 V
    TO-92
    Through Hole
    625 mW
    -
    Single
    300 V
    6 V
    50 MHz
    3
    1
    • RS-artikelnummer 274-879
    • Tillv. art.nr FMMT491TA
    Var (i ett paket med 10)
    3,506 kr
    DiodesZetex
    NPN
    1 A
    60 V
    SOT-23
    Surface Mount
    500 mW
    100
    Single
    80 V
    5 V
    150 MHz
    3
    1
    • RS-artikelnummer 816-7738
    • Tillv. art.nr BC856BT
    Var (i ett paket med 200)
    0,16 kr
    Nexperia
    PNP
    -100 mA
    -65 V
    SOT-416 (SC-75)
    Surface Mount
    150 mW
    220
    Single
    -80 V
    -5 V
    100 MHz
    3
    1
    • RS-artikelnummer 806-4447P
    • Tillv. art.nr KSA992FBU
    Varje (levereras i en rulle)
    1,093 kr
    onsemi
    PNP
    -50 mA
    -120 V
    TO-92
    Through Hole
    500 mW
    300, 430
    Single
    -120 V
    -5 V
    1 MHz
    3
    1
    • RS-artikelnummer 437-9489
    • Tillv. art.nr BC847B
    1 rulle med 3000
    613,75 kr
    onsemi
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Var (i ett paket med 10)
    4,794 kr
    STMicroelectronics
    NPN
    500 mA
    300 V
    SOT-32
    Through Hole
    2.8 W
    30
    Single
    300 V
    3 V
    -
    3
    1
    • RS-artikelnummer 166-0354
    • Tillv. art.nr PBSS4540Z,115
    Var (i en rulle med 1000)
    1,586 kr
    Nexperia
    NPN
    5 A
    40 V
    SOT-223 (SC-73)
    Surface Mount
    2 W
    300
    Single
    40 V
    6 V
    130 MHz
    4
    1
    • RS-artikelnummer 903-4305
    • Tillv. art.nr KSC2690AYS
    Var (i ett paket med 50)
    6,00 kr
    onsemi
    NPN
    1.2 A
    160 V
    TO-126
    Through Hole
    20 W
    160
    Single
    160 V
    5 V
    -
    3
    1
    • RS-artikelnummer 151-467
    • Tillv. art.nr BD135-16
    Var (i ett rör med 50)
    2,206 kr
    STMicroelectronics
    NPN
    1.5 A
    45 V
    SOT-32
    Through Hole
    -
    -
    -
    -
    -
    -
    3
    1
    • RS-artikelnummer 168-6172
    • Tillv. art.nr TIP47
    Var (i ett rör med 50)
    5,887 kr
    STMicroelectronics
    NPN
    1 A
    250 V
    TO-220
    Through Hole
    2 W
    30
    Single
    350 V
    5 V
    10 MHz
    3
    1
    • RS-artikelnummer 795-8808
    • Tillv. art.nr TIP29A
    Var (i ett paket med 10)
    4,514 kr
    STMicroelectronics
    NPN
    1 A
    60 V
    TO-220
    Through Hole
    30 W
    15
    Single
    60 V
    5 V
    -
    3
    1
    • RS-artikelnummer 725-8521
    • Tillv. art.nr BC817-40W,115
    Var (i ett paket med 200)
    0,398 kr
    Nexperia
    NPN
    500 mA
    45 V
    SOT-323 (SC-70)
    Surface Mount
    200 mW
    250
    Single
    50 V
    5 V
    -
    3
    1
    • RS-artikelnummer 793-0765P
    • Tillv. art.nr MMBT3906LT3G
    Varje (levereras i en rulle)
    0,226 kr
    onsemi
    PNP
    -800 mA
    -40 V
    SOT-23
    Surface Mount
    225 mW
    100
    Single
    -40 V dc
    -5 V
    100 MHz
    3
    1
    • RS-artikelnummer 184-4307
    • Tillv. art.nr MJ21196G
    Var (i en låda med 100)
    58,533 kr
    onsemi
    NPN
    30 A
    250 V
    TO-204AA
    Through Hole
    250 W
    -
    Single
    400 V dc
    5 V dc
    1 MHz
    3
    1
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