Shenzhen HJL Electronics Co., Ltd.
Shenzhen HJL Electronics Co., Ltd.

Zener diodes are specially doped to have a predictable and highly stable reverse breakdown voltage. This unique property makes them ideal for voltage regulation, overvoltage protection, and other applications requiring precise control over voltage levels.

Types of Zener Diodes

Product Marketing Status Configuration VRRM(V) max. IF(A) max. VF (V) max IFSM(A) max. IR(uA) max. trr (ns) max TJ(°C) max. TJ(°C) min. ECCN(US) Compliance
1N4728 Active Single 150 -55 EAR99
1N4728A not for new design Single 175 -55 EAR99
1N4729 Active Single 150 -55 EAR99
1N4729A not for new design Single 175 -55 EAR99
1N4730 Active Single 150 -55 EAR99
1N4730A not for new design Single 175 -55 EAR99
1N4731 Active Single 150 -55 EAR99
1N4731A not for new design Single 175 -55 EAR99
1N4732 Active Single 150 -55 EAR99
1N4732A not for new design Single 175 -55 EAR99
1N4733 Active Single 150 -55 EAR99
1N4733A not for new design Single 175 -55 EAR99
1N4734 Active Single 150 -55 EAR99
1N4734A not for new design Single 175 -55 EAR99
1N4735 Active Single 150 -55 EAR99
1N4735A not for new design Single 175 -55 EAR99
1N4736 Active Single 150 -55 EAR99
1N4736A not for new design Single 150 -55 EAR99
1N4737 Active Single 150 -55 EAR99
1N4737A not for new design Single 175 -55 EAR99
1N4738 Active Single 150 -55 EAR99
1N4738A not for new design Single 175 -55 EAR99
1N4739 Active Single 150 -55 EAR99
1N4739A not for new design Single 175 -55 EAR99
1N4740 Active Single 150 -55 EAR99
1N4740A not for new design Single 175 -55 EAR99
1N4741 Active Single 150 -55 EAR99
1N4741A not for new design Single 175 -55 EAR99
1N4742 Active Single 150 -55 EAR99
1N4742A not for new design Single 175 -55 EAR99
BZT52C10 Active Single 0.2 150 -55 EAR99
BZT52C10S Active Single 0.2 150 -55 EAR99
BZT52C11 Active Single 0.1 150 -55 EAR99
BZT52C11S Active Single 0.1 150 -55 EAR99
BZT52C12 Active Single 0.1 150 -55 EAR99
BZT52C12S Active Single 0.1 150 -55 EAR99
BZT52C13S Active Single 0.1 150 -55 EAR99
BZT52C15 Active Single 0.1 150 -55 EAR99
BZT52C15S Active Single 0.1 150 -55 EAR99
BZT52C16 Active Single 0.1 150 -55 EAR99
BZT52C16S Active Single 0.1 150 -55 EAR99
BZT52C18 Active Single 0.1 150 -55 EAR99
BZT52C18S Active Single 0.1 150 -55 EAR99
BZT52C20 Active Single 0.1 150 -55 EAR99
BZT52C20S Active Single 0.1 150 -55 EAR99
BZT52C22 Active Single 0.1 150 -55 EAR99
BZT52C22S Active Single 0.1 150 -55 EAR99
BZT52C24 Active Single 0.1 150 -55 EAR99
BZT52C24S Active Single 0.1 150 -55 EAR99
BZT52C27 Active Single 0.1 150 -55 EAR99
BZT52C27S Active Single 0.1 150 -55 EAR99
BZT52C2V4 Active Single 50 150 -55 EAR99
BZT52C2V4S Active Single 50 150 -55 EAR99
BZT52C2V7 Active Single 20 150 -55 EAR99
BZT52C2V7S Active Single 20 150 -55 EAR99
BZT52C30 Active Single 0.1 150 -55 EAR99
BZT52C30S Active Single 0.1 150 -55 EAR99
BZT52C33 Active Single 0.1 150 -55 EAR99
BZT52C33S Active Single 0.1 150 -55 EAR99
BZT52C36 Active Single 0.1 150 -55 EAR99
BZT52C36S Active Single 0.1 150 -55 EAR99
BZT52C39 Active Single 0.1 150 -55 EAR99
BZT52C39S Active Single 0.1 150 -55 EAR99
BZT52C3V0 Active Single 10 150 -55 EAR99
BZT52C3V0S Active Single 10 150 -55 EAR99
BZT52C3V3 Active Single 5 150 -55 EAR99
BZT52C3V3S Active Single 5 150 -55 EAR99
BZT52C3V6 Active Single 5 150 -55 EAR99
BZT52C3V6S Active Single 5 150 -55 EAR99
BZT52C3V9 Active Single 3 150 -55 EAR99
BZT52C3V9S Active Single 3 150 -55 EAR99
BZT52C43 Active Single 0.1 150 -55 EAR99
BZT52C43S Active Single 0.1 150 -55 EAR99
BZT52C47 Active Single 0.1 150 -55 EAR99
BZT52C47S Active Single 0.1 150 -55 EAR99
BZT52C4V3 Active Single 3 150 -55 EAR99
BZT52C4V3S Active Single 3 150 -55 EAR99
BZT52C4V7 Active Single 3 150 -55 EAR99
BZT52C4V7S Active Single 3 150 -55 EAR99
BZT52C5V1 Active Single 2 150 -55 EAR99
BZT52C5V1S Active Single 2 150 150 EAR99
BZT52C5V6 Active Single 1 150 -55 EAR99
BZT52C5V6S Active Single 1 150 -55 EAR99
BZT52C6V2 Active Single 3 150 -55 EAR99
BZT52C6V2S Active Single 3 150 -55 EAR99
BZT52C6V8 Active Single 2 150 -55 EAR99
BZT52C6V8S Active Single 2 150 -55 EAR99
BZT52C7V5 Active Single 1 150 -55 EAR99
BZT52C7V5S Active Single 1 150 -55 EAR99
BZT52C8V2 Active Single 0.7 150 -55 EAR99
BZT52C8V2S Active Single 0.7 150 -55 EAR99
BZT52C9V1 Active Single 0.5 150 -55 EAR99
BZT52C9V1S Active Single 0.5 150 -55 EAR99
BZX584C15 Active Single 0.1 150 -55 EAR99
BZX584C3V9 Active Single 3 150 -55 EAR99
BZX584C4V3 Active Single 3 150 -55 EAR99
BZX584C5V1 Active Single 2 150 -55 EAR99
BZX584C5V6 Active Single 1 150 -55 EAR99
BZX84C12 Active Single 0.1 150 -55 EAR99
BZX84C15 Active Single 0.1 150 -55 EAR99
BZX84C20 Active Single 0.1 150 -55 EAR99
BZX84C22 Active Single 0.1 150 -55 EAR99
BZX84C24 Active Single 0.1 150 -55 EAR99
BZX84C27 Active Single 0.1 150 -55 EAR99
BZX84C3V3 Active Single 5 150 -55 EAR99
BZX84C5V1 Active Single 2 150 -55 EAR99
BZX84C5V6 Active Single 1 150 -55 EAR99
BZX84C6V8 Active Single 2 150 -55 EAR99
BZX84C7V5 Active Single 1 150 -55 EAR99
MMSZ4683 Active Single 0.8 150 -55 EAR99
MMSZ5233BS Active Single 5 150 -55 EAR99

FAQs about Zener Diodes

  • Explain How Zener Diode Can Be Used As Voltage Regulator

    A typical zener diode regulator circuit uses a zener diode alongside a series resistor. The zener diode's primary function is to maintain a constant voltage across its terminals, regardless of any variations in the input voltage. This constant voltage acts as a reference for the rest of the circuit, ensuring a steady output voltage.

  • Zener Diode for Overvoltage Protection

    The overvoltage protection circuit using zener diodes is relatively straightforward. A zener diode with a breakdown voltage slightly above the desired input voltage range is connected in series with the device. If the input voltage exceeds the desired threshold, the zener diode conducts, diverting the excess voltage and protecting the system from damage.


    Zener diodes provide reliable and instantaneous protection, making them an integral part of many electronic devices. From smartphones to automotive electronics, the inclusion of zener diode overvoltage protection ensures the longevity and reliability of our technological world.

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