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    Zener Diodes

    Zener diodes are a type of semiconductor device that has different characteristics from a normal diode. Zener diodes allow current to flow from its anode to its cathode in either a forward or reverse direction, but only when exposed to enough voltage.

    How does a Zener diode work?

    Zener diodes are designed to change the direction of the current flow once the voltage reaches a specific, defined voltage level. This also means that Zener diodes can operate continuously in a breakdown mode. The voltage level that changes the direction of flow is called Zener Voltage or Breakdown Voltage. It could be defined for specific diodes anywhere from 1.8 to 200 V.

    Types of Zener diodes

    Zener diodes are offered in an array of different configurations such as different levels of power dissipation, mount types, and different configurations.

    There are also different types of Zener diodes such as:

    • Avalanche
    • Bi-Directional
    • ESD Protection
    • General Purpose
    • Ultra-small

    Typical applications of Zener diodes?

    Zener diodes are used in all kinds of electronic equipment and are used to protect circuits from overvoltage and electrostatic discharge or for switching applications. They are one of the basic building blocks of electronic circuits. Zener diodes work reliably in the breakdown region, unlike normal diodes which would overheat. They are the most common and handiest solutions to a number of needs in a circuit design.

    5987 Products showing for Zener Diodes

    onsemi
    Single
    18V
    Through Hole
    1
    500 mW
    DO-35
    General Purpose
    5%
    2
    7mA
    21Ω
    100nA
    1.91 (Dia.) x 4.56mm
    DiodesZetex
    Single
    7.5V
    Surface Mount
    1
    350 mW
    SOT-23
    Voltage Regulator
    2%
    3
    5mA
    15Ω
    1µA
    3 x 1.4 x 1.1mm
    DiodesZetex
    Single
    33V
    Surface Mount
    1
    1 W
    SMA
    Voltage Regulator
    5%
    2
    25mA
    15Ω
    500nA
    4.6 x 2.92 x 2.1mm
    DiodesZetex
    Single
    2.7V
    Surface Mount
    1
    500 mW
    SOD-123
    Voltage Regulator
    7%
    2
    5mA
    100Ω
    20µA
    2.85 x 1.7 x 1.35mm
    Nexperia
    Single
    33V
    Surface Mount
    1
    300 mW
    SOD-523
    Voltage Regulator
    ±2%
    2
    2mA
    -
    0.05µA
    1.25 x 0.85 x .065mm
    onsemi
    Single
    33V
    Surface Mount
    1
    500 mW
    SOD-123
    Voltage Regulator
    5%
    2
    2mA
    80Ω
    50nA
    2.84 x 1.8 x 1.25mm
    Nexperia
    Single
    18V
    Surface Mount
    1
    300 mW
    SOD-323
    Voltage Regulator
    2%
    2
    5mA
    45Ω
    50nA
    1.8 x 1.35 x 1.05mm
    onsemi
    Single
    51V
    Surface Mount
    1
    1.5 W
    SMA
    Voltage Regulator
    5%
    2
    7.3mA
    70Ω
    500nA
    4.57 x 2.92 x 2.05mm
    Vishay
    Single
    4.7V
    Surface Mount
    1
    200 mW
    SOD-523
    Small Signal
    ±5%
    2
    -
    -
    -
    -
    ROHM
    Single
    3.9V
    Surface Mount
    1
    250 mW
    SOT-23
    Voltage Regulator
    -
    3
    -
    -
    -
    -
    Vishay
    Single
    2.4V
    Through Hole
    1
    500 mW
    DO-35
    Voltage Regulator
    2%
    2
    5mA
    85Ω
    100µA
    1.7 (Dia.) x 3.9mm
    Taiwan Semiconductor
    Single
    15V
    Surface Mount
    1
    1 W
    SOD-123W
    General Purpose
    -
    -
    -
    -
    -
    -
    Vishay
    Single
    21.2V
    Surface Mount
    1
    500 mW
    MicroSMF (DO-219AC)
    General Purpose
    -
    2
    -
    -
    -
    -
    Vishay
    Single
    2.75V
    Surface Mount
    1
    500 mW
    MicroSMF (DO-219AC)
    General Purpose
    -
    2
    -
    -
    -
    -
    Nexperia
    Single
    7.5V
    Surface Mount
    1
    300 mW
    SOD-323
    Voltage Regulator
    2%
    2
    5mA
    15Ω
    1µA
    1.8 x 1.35 x 1.05mm
    Vishay
    Single
    4.7V
    Through Hole
    1
    500 mW
    DO-35
    Voltage Regulator
    2%
    2
    5mA
    100Ω
    5µA
    1.7 (Dia.) x 3.9mm
    onsemi
    Single
    9.1V
    Surface Mount
    1
    225 mW
    SOT-23
    Voltage Regulator
    6%
    3
    5mA
    15Ω
    500nA
    3.04 x 1.4 x 1.01mm
    Vishay
    Single
    62V
    Through Hole
    1
    1.3 W
    DO-41
    General Purpose
    2%
    2
    4mA
    125Ω
    500nA
    2.6 (Dia.) x 4.1mm
    Nexperia
    Single
    75V
    Surface Mount
    1
    365 mW
    DFN1006BD-2
    Voltage Regulator
    -
    -
    -
    -
    -
    -
    Nexperia
    Single
    16V
    Surface Mount
    1
    365 mW
    DFN1006BD-2
    Voltage Regulator
    -
    -
    -
    -
    -
    -
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