Zener Diodes

A Zener diode is a type of semiconductor diode that is different to a normal diode as it allows current to flow from its anode to its cathode in either a forward or reverse direction, but only when exposed to enough voltage. Zener diodes have been designed to work reliably in the breakdown region, unlike normal diodes which would overheat. They are the most common and the handiest solutions to a number of needs in a circuit design.

Zener diodes are designed to change the direction of 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 that change a direction of flow is called Zener Voltage or Breakdown Voltage. It could be defined for specific diodes anywhere from 1.8 to 200 V.

Key attributes of a Zener diode are:

• Device configuration including a dual or common anode
• Type of Zener, including avalanche or voltage regulator
• Voltage tolerance
• Voltage drift with temperature
• Impedance (max)

What is a typical application 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.

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Description Prix 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
N° de stock RS 788-564
Référence fabricantBZV55-C20,115
MarqueNXP
0,126 €
Each (In a Pack of 25)
Unité
Single 20V Surface Mount 1 500 mW MiniMELF Voltage Regulator 5% 2 5mA 55Ω 50nA 3.7 x 1.6 x 1.6mm -
N° de stock RS 788-429
Référence fabricantBZV55-C47
MarqueNXP
0,126 €
Each (In a Pack of 25)
Unité
Single 47V Surface Mount 1 500 mW MiniMELF Voltage Regulator 5% 2 2mA 170Ω 50nA 3.7 x 1.6 x 1.6mm -
N° de stock RS 788-592
Référence fabricantBZV55-C27,115
MarqueNXP
0,126 €
Each (In a Pack of 25)
Unité
Single 27V Surface Mount 1 500 mW MiniMELF Voltage Regulator 5% 2 2mA 80Ω 50nA 3.7 x 1.6 x 1.6mm -