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.
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 | |
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.
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.