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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.

    5641 Products showing for Zener Diodes

    ROHM
    Single
    20V
    Surface Mount
    1
    250 mW
    SOT-23
    Voltage Regulator
    -
    3
    -
    -
    -
    -
    onsemi
    Single
    18V
    Surface Mount
    1
    500 mW
    SOD-523
    Voltage Regulator
    5%
    2
    5mA
    45Ω
    50nA
    1.3 x 0.9 x 0.7mm
    ROHM
    Single
    22V
    Surface Mount
    1
    250 mW
    SOT-23
    Voltage Regulator
    -
    3
    -
    -
    -
    -
    onsemi
    Single
    24V
    Surface Mount
    1
    1.5 W
    SMA
    Voltage Regulator
    5%
    2
    15.6mA
    19Ω
    500nA
    4.57 x 2.92 x 2.05mm
    onsemi
    Single
    18V
    Through Hole
    1
    1 W
    DO-41
    General Purpose
    5%
    2
    14mA
    20Ω
    5µA
    2.72 (Dia.) x 5.2mm
    onsemi
    Single
    6.8V
    Surface Mount
    1
    500 mW
    SOD-523
    Voltage Regulator
    5%
    2
    5mA
    15Ω
    2µA
    1.3 x 0.9 x 0.7mm
    onsemi
    Single
    91V
    Through Hole
    1
    3 W
    Case 59-10
    Voltage Regulator
    5%
    2
    4.1mA
    200Ω
    250nA
    2.7 (Dia.) x 5.2mm
    Vishay
    Single
    36V
    Surface Mount
    1
    1 W
    SMA (DO-214AC)
    General Purpose
    ±5%
    2
    -
    -
    -
    -
    Nexperia
    Single
    4.7V
    Surface Mount
    1
    1 W
    SOT-89
    Voltage Regulator
    5%
    3
    5mA
    80Ω
    3µA
    4.6 x 2.6 x 1.6mm
    ROHM
    Single
    4.7V
    Surface Mount
    1
    250 mW
    SOT-23
    Voltage Regulator
    -
    3
    -
    -
    -
    -
    Vishay
    Single
    36V
    Surface Mount
    1
    200 mW
    SOD-523
    Small Signal
    ±5%
    2
    -
    -
    -
    -
    ROHM
    Single
    3V
    Surface Mount
    1
    250 mW
    SOT-23
    Voltage Regulator
    -
    3
    -
    -
    -
    -
    onsemi
    Single
    18V
    Surface Mount
    1
    500 mW
    SOD-123
    Voltage Regulator
    5%
    2
    7mA
    21Ω
    100nA
    2.69 x 1.6 x 1.12mm
    ROHM
    Single
    9.1V
    Surface Mount
    1
    250 mW
    SOT-23
    Voltage Regulator
    -
    3
    -
    -
    -
    -
    Vishay
    Single
    3.9V
    Surface Mount
    1
    500 mW
    MicroMELF
    Voltage Regulator
    5%
    2
    5mA
    <90Ω
    <40µA
    2 x 1.2 x 1.2mm
    ROHM
    Single
    6.8V
    Surface Mount
    1
    250 mW
    SOT-23
    Voltage Regulator
    -
    3
    -
    -
    -
    -
    ROHM
    Single
    2.12V
    Surface Mount
    1
    1 W
    SOD-128
    -
    -
    2
    -
    -
    -
    -
    onsemi
    Single
    3.3V
    Surface Mount
    1
    500 mW
    SOD-123
    Voltage Regulator
    5%
    2
    5mA
    95Ω
    5µA
    2.69 x 1.6 x 1.12mm
    onsemi
    Single
    16V
    Surface Mount
    1
    500 mW
    SOD-123
    Voltage Regulator
    5%
    2
    5mA
    40Ω
    50nA
    2.69 x 1.6 x 1.12mm
    STMicroelectronics
    Single
    18V
    Surface Mount
    6
    -
    SOIC
    -
    -
    8
    -
    -
    2µA
    5 x 1.65 x 4mm
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