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. 545-3049
FabrikantnummerMMSZ5231BT1G
FabrikantON Semiconductor
€ 0,127
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Aantal stuks
Single 5.1V Surface Mount 1 500 mW SOD-123 Voltage Regulator 5% 2 20mA 17Ω 5µA 2.69 x 1.6 x 1.12mm -
RS-stocknr. 177-7451
FabrikantnummerTZX6V2E-TR
FabrikantVishay
€ 0,015
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Aantal stuks
Single 6.4V Through Hole 1 500 mW DO-35 Voltage Regulator 2% 2 5mA 15Ω 1µA 1.7 (Dia.) x 3.9mm -
RS-stocknr. 816-7971
FabrikantnummerBZX84-A6V2
FabrikantNexperia
€ 0,172
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Single 6.2V Surface Mount 1 250 mW SOT-23 (TO-236AB) Voltage Regulator 1% 3 5mA 10Ω 3µA 3 x 1.4 x 1.1mm -
RS-stocknr. 179-1178
FabrikantnummerBZX79-C6V8,113
FabrikantNexperia
€ 0,016
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Single 6.8V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 5mA 15Ω 2µA 4.25 x 1.85 x 1.85mm -
RS-stocknr. 103-2969
FabrikantnummerMMSZ5231BT1G
FabrikantON Semiconductor
€ 0,029
Each (On a Reel of 3000)
Aantal stuks
Single 5.1V Surface Mount 1 500 mW SOD-123 Voltage Regulator 5% 2 20mA 17Ω 5µA 2.69 x 1.6 x 1.12mm -
RS-stocknr. 818-5130
FabrikantnummerTZX6V2E-TR
FabrikantVishay
€ 0,012
Each (In a Pack of 200)
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Single 6.4V Through Hole 1 500 mW DO-35 Voltage Regulator 2% 2 5mA 15Ω 1µA 1.7 (Dia.) x 3.9mm -
RS-stocknr. 544-9747
FabrikantnummerMMSZ4V7T1G
FabrikantON Semiconductor
€ 0,155
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Single 4.7V Surface Mount 1 500 mW SOD-123 Voltage Regulator 5% 2 5mA 80Ω 3µA 2.69 x 1.6 x 1.12mm -
RS-stocknr. 545-3033
FabrikantnummerMMSZ5230BT1G
FabrikantON Semiconductor
€ 0,127
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Single 4.7V Surface Mount 1 500 mW SOD-123 Voltage Regulator 5% 2 20mA 19Ω 5µA 2.69 x 1.6 x 1.12mm -
RS-stocknr. 145-2841
FabrikantnummerBZX84C43LT1G
FabrikantON Semiconductor
€ 0,019
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Single 43V Surface Mount 1 225 mW SOT-23 Voltage Regulator 5% 3 2mA 150Ω 50nA 3.04 x 1.4 x 1.01mm -
RS-stocknr. 788-508
FabrikantnummerBZV55-C10,115
FabrikantNexperia
€ 0,128
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Single 10V Surface Mount 1 500 mW MiniMELF Voltage Regulator 5% 2 5mA 20Ω 200nA 3.7 x 1.6 x 1.6mm -
RS-stocknr. 544-3626
FabrikantnummerBZX79-C6V8,113
FabrikantNexperia
€ 0,096
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Single 6.8V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 5mA 15Ω 2µA 4.25 x 1.85 x 1.85mm -
RS-stocknr. 710-4465
FabrikantnummerZMY10-GS08
FabrikantVishay
€ 0,217
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Single 10V Surface Mount 1 1 W MELF Voltage Regulator 6% 2 50mA - 5.2 x 2.6 x 2.6mm -
RS-stocknr. 103-3900
Fabrikantnummer1N5378BRLG
FabrikantON Semiconductor
€ 0,105
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Single 100V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 12mA 800Ω 500nA 8.89 x 3.68 x 3.68mm -
RS-stocknr. 781-4017
FabrikantnummerBZX84C43LT1G
FabrikantON Semiconductor
€ 0,036
Each (On a Tape of 200)
Aantal stuks
Single 43V Surface Mount 1 225 mW SOT-23 Voltage Regulator 5% 3 2mA 150Ω 50nA 3.04 x 1.4 x 1.01mm -
RS-stocknr. 165-2928
FabrikantnummerZMY10-GS08
FabrikantVishay
€ 0,088
Each (On a Reel of 1500)
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Single 10V Surface Mount 1 1 W MELF Voltage Regulator 6% 2 50mA - 5.2 x 2.6 x 2.6mm -
RS-stocknr. 145-3288
FabrikantnummerMMSZ5230BT1G
FabrikantON Semiconductor
€ 0,029
Each (On a Reel of 3000)
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Single 4.7V Surface Mount 1 500 mW SOD-123 Voltage Regulator 5% 2 20mA 19Ω 5µA 2.69 x 1.6 x 1.12mm -
RS-stocknr. 438-1583
FabrikantnummerBZV55-C18,115
FabrikantNexperia
€ 0,024
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Single 18V Surface Mount 1 500 mW MiniMELF Voltage Regulator ±5% 2 5mA 45Ω 50nA 3.7 x 1.6 x 1.6mm -
RS-stocknr. 774-3313
Fabrikantnummer1N5378BG
FabrikantON Semiconductor
€ 0,339
Each (In a Pack of 10)
Aantal stuks
Single 100V Through Hole 1 5 W Surmetic 40 Voltage Regulator 5% 2 12mA 800Ω 500nA 3.68 (Dia.) x 8.89mm -
RS-stocknr. 163-2520
FabrikantnummerMMSZ4V7T1G
FabrikantON Semiconductor
€ 0,029
Each (On a Reel of 3000)
Aantal stuks
Single 4.7V Surface Mount 1 500 mW SOD-123 Voltage Regulator 5% 2 5mA 80Ω 3µA 2.69 x 1.6 x 1.12mm -
RS-stocknr. 103-5133
Fabrikantnummer1N5378BG
FabrikantON Semiconductor
€ 0,127
Each (In a Box of 1000)
Aantal stuks
Single 100V Through Hole 1 5 W Surmetic 40 Voltage Regulator 5% 2 12mA 800Ω 500nA 3.68 (Dia.) x 8.89mm -