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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Omschrijving Prijs 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-stocknr. 165-2851
FabrikantnummerBZT55C33-GS08
FabrikantVishay
0,012 €
Each (On a Reel of 2500)
Aantal stuks
Single 33V Surface Mount 1 500 mW Quadro MiniMelf Voltage Regulator 6% 2 5mA 80Ω 100nA 3.5 x 1.7 x 1.5mm -
RS-stocknr. 823-3154
FabrikantnummerSMAZ6V8-13-F
FabrikantDiodesZetex
0,25 €
Each (In a Pack of 50)
Aantal stuks
Single 6.8V Surface Mount 1 1 W SMA General Purpose 5% 2 100mA 5µA 4.6 x 2.92 x 2.1mm -
RS-stocknr. 170-8990
FabrikantnummerMMSZ5241BS-7-F
FabrikantDiodesZetex
0,016 €
Each (On a Reel of 3000)
Aantal stuks
Single 11V Surface Mount 1 200 mW SOD-323 General Purpose 5% 2 20mA 600Ω 2µA 1.8 x 1.4 x 1.1mm -
RS-stocknr. 184-4199
FabrikantnummerBZX84C11LT1G
FabrikantON Semiconductor
0,018 €
Each (On a Reel of 3000)
Aantal stuks
Single 11V Surface Mount 1 300 mW SOT-23 Voltage Regulator ±5% 3 5mA 20Ω 100nA 3.04 x 1.4 x 1.01mm AEC-Q101
RS-stocknr. 816-0450
FabrikantnummerBZX84J-C3V6,115
FabrikantNexperia
0,069 €
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Aantal stuks
Single 3V Surface Mount 1 550 mW SOD-323F General Purpose 5% 2 5mA - 5µA 1.8 x 1.35 x 0.8mm -
RS-stocknr. 171-5291
FabrikantnummerTFZVTR12B
FabrikantROHM
0,047 €
Each (On a Reel of 3000)
Aantal stuks
Single 11.44V Surface Mount 1 500 mW SC-108B, SOD-323HE, TUMD2M Voltage Regulator - 2 10mA 12Ω 200nA 2.1 x 1.5 x 0.8mm -
RS-stocknr. 800-9064
Fabrikantnummer1SMB5946BT3G
FabrikantON Semiconductor
0,26 €
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Single 75V Surface Mount 1 3 W SMB Voltage Regulator 5% 2 5mA 140Ω 1µA 4.6 x 3.95 x 2.28mm -
RS-stocknr. 781-5411
FabrikantnummerSZBZX84C5V1ET3G
FabrikantON Semiconductor
0,011 €
Each (In a Pack of 50)
Aantal stuks
Single 5.1V Surface Mount 1 225 mW SOT-23 Voltage Regulator 6% 3 5mA 60Ω 2µA 3.04 x 1.4 x 1.01mm -
RS-stocknr. 166-1335
FabrikantnummerBZX384-C3V9,115
FabrikantNexperia
0,024 €
Each (On a Reel of 3000)
Aantal stuks
Single 3.9V Surface Mount 1 300 mW UMD Voltage Regulator 5% 2 5mA 90Ω 3µA 1.8 x 1.35 x 1.05mm -
RS-stocknr. 145-3331
FabrikantnummerBZX84B5V1LT1G
FabrikantON Semiconductor
0,023 €
Each (On a Reel of 3000)
Aantal stuks
Single 5.1V Surface Mount 1 300 mW SOT-23 Voltage Regulator 2% 3 5mA 60Ω 2µA 2.9 x 1.3 x 0.94mm -
RS-stocknr. 818-5027
FabrikantnummerTZX36A-TAP
FabrikantVishay
0,011 €
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Aantal stuks
Single 36V Through Hole 1 500 mW DO-35 Voltage Regulator 2% 2 2mA 140Ω 1µA 1.7 (Dia.) x 3.9mm -
RS-stocknr. 177-7397
Fabrikantnummer1N5238B-TR
FabrikantVishay
0,014 €
Each (On a Reel of 10000)
Aantal stuks
Single 8.7V Through Hole 1 500 mW DO-35 General Purpose 5% 2 20mA 3µA 1.7 (Dia.) x 3.9mm -
RS-stocknr. 184-4206
FabrikantnummerBZX84C3V3LT1G
FabrikantON Semiconductor
0,018 €
Each (On a Reel of 3000)
Aantal stuks
Single 3.3V Surface Mount 1 300 mW SOT-23 Voltage Regulator ±5% 3 5mA 95Ω 5µA 3.04 x 1.4 x 1.01mm AEC-Q101
RS-stocknr. 182-7182
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FabrikantDiodesZetex
0,024 €
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Aantal stuks
- 22V Surface Mount 1 250 W X3-DFN0603 Ultra Small ±5% 2 5mA - 100nA 0.62 x 0.32 x 0.28mm AEC-Q101
RS-stocknr. 122-0001
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0,032 €
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Aantal stuks
Common Anode 12V Surface Mount 2 300 mW SOT-23 ESD Suppressor 5% 3 5mA 90Ω 100nA 3 x 1.4 x 1.1mm -
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RS-stocknr. 218-6605
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FabrikantVishay
0,049 €
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Single 5.37V Surface Mount 1 500 mW MicroSMF (DO-219AC) General Purpose - 2 - - - - -
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FabrikantVishay
0,08 €
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Single 47V Surface Mount 1 1 W DO-213AB General Purpose 5% 2 10mA 80Ω 500nA 2.6 (Dia.) x 5.2mm -
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RS-stocknr. 218-6567
FabrikantnummerPLZ39D-HG3_A/H
FabrikantVishay
0,049 €
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Single 38.2V Surface Mount 1 500 mW MicroSMF (DO-219AC) General Purpose - 2 - - - - -
RS-stocknr. 145-2051
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FabrikantVishay
0,012 €
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Single 7.5V Surface Mount 1 500 mW SOD-80 Voltage Regulator 5% 2 20mA 3µA 3.7 x 1.6 x 1.6mm -
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0,218 €
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Single 36V Surface Mount 1 1 W Mini2 F3 B Voltage Regulator 5% 2 5mA 30Ω 10µA 2.6 x 1.6 x 0.7mm -