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.


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Description Price Diode Configuration Nominal Zener Voltage Mounting Type Number of Elements per Chip Maximum Power Dissipation Package Type Zener Type Zener Voltage Tolerance Pin Count Test Current Maximum Zener Impedance Maximum Reverse Leakage Current Dimensions Automotive Standard
RS Stock No. 164-8249
Mfr. Part No.ZEN132V230A16LS
BrandLittelfuse
£1,767.12
1 Tape of 3000
Tape(s)
Single 13.4V Surface Mount 1 800 mW - Polymer Protected - 3 5A - 5mA 4.15 x 4.15 x 2mm -
RS Stock No. 867-5362
Mfr. Part No.ZEN132V230A16LS
BrandLittelfuse
£0.733
Each (In a Bag of 10)
Units
Single 13.4V Surface Mount 1 800 mW - Polymer Protected - 3 5A - 5mA 4.15 x 4.15 x 2mm -
RS Stock No. 867-5365
Mfr. Part No.ZEN056V230A16LS
BrandLittelfuse
£1.556
Each (In a Bag of 10)
Units
Single 5.6V Surface Mount 1 1 W - Polymer Protected - 3 5A - 10mA 4.15 x 4.15 x 2mm -
RS Stock No. 867-5356
Mfr. Part No.ZEN056V075A48LS
BrandLittelfuse
£1.472
Each (In a Bag of 10)
Units
Single 5.6V Surface Mount 1 800 mW - Polymer Protected - 3 3A - 10mA 4.15 x 4.15 x 2mm -
RS Stock No. 164-8248
Mfr. Part No.ZEN132V075A48LS
BrandLittelfuse
£1,767.12
1 Tape of 3000
Tape(s)
Single 13.4V Surface Mount 1 800 mW - Polymer Protected - 3 3A - 5mA 4.15 x 4.15 x 2mm -
RS Stock No. 164-8246
Mfr. Part No.ZEN056V075A48LS
BrandLittelfuse
£1,890.63
1 Tape of 3000
Tape(s)
Single 5.6V Surface Mount 1 800 mW - Polymer Protected - 3 3A - 10mA 4.15 x 4.15 x 2mm -
RS Stock No. 867-5368
Mfr. Part No.ZEN132V075A48LS
BrandLittelfuse
£0.733
Each (In a Bag of 10)
Units
Single 13.4V Surface Mount 1 800 mW - Polymer Protected - 3 3A - 5mA 4.15 x 4.15 x 2mm -