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. 122-0298
FabrikantnummerMMSZ5230B-7-F
FabrikantDiodesZetex
€ 0,027
Each (On a Reel of 3000)
Aantal stuks
Single 4.7V Surface Mount 1 500 mW SOD-123 Voltage Regulator 5% 2 20mA 19Ω 5µA 2.85 x 1.7 x 1.35mm -
RS-stocknr. 800-8853
Fabrikantnummer1N5946BRLG
FabrikantON Semiconductor
€ 0,252
Each (In a Pack of 25)
Aantal stuks
Single 75V Through Hole 1 3 W Case 59-10 Voltage Regulator 5% 2 5mA 140Ω 250nA 2.7 (Dia.) x 5.2mm -
RS-stocknr. 136-4790
FabrikantnummerBZX79-C3V3,133
FabrikantNexperia
€ 0,014
Each (On a Tape of 10000)
Aantal stuks
Single 3.3V Through Hole 1 500 mW SOD27 (DO-35) Voltage Regulator ±2 %, ±5% 2 5mA 600 Ω @ 1 mA - 1.85 (Dia.) x 4.25mm -
RS-stocknr. 781-3995
FabrikantnummerBZX84C15LT3G
FabrikantON Semiconductor
€ 0,037
Each (On a Tape of 200)
Aantal stuks
Single 15V Surface Mount 1 225 mW SOT-23 Voltage Regulator 5% 3 5mA 30Ω 50nA 3.04 x 1.4 x 1.01mm -
RS-stocknr. 170-3537
Fabrikantnummer1N5337BRLG
FabrikantON Semiconductor
€ 0,101
Each (On a Reel of 4000)
Aantal stuks
Single 4.7V Through Hole 1 5 W - Voltage Regulator 5% 2 260mA 5µA 3.68 (Dia.) x 8.89mm -
RS-stocknr. 159-6583
FabrikantnummerTZX3V9C-TR
FabrikantVishay
€ 0,022
Each (On a Reel of 10000)
Aantal stuks
Single 4V Through Hole 1 500 mW DO-35 Voltage Regulator 3% 2 5mA 100Ω 5µA 1.7 (Dia.) x 3.9mm -
RS-stocknr. 508-365
FabrikantnummerBZX384-C18,115
FabrikantNexperia
€ 0,011
Each (In a Pack of 200)
Aantal stuks
Single 18V Surface Mount 1 300 mW UMD Voltage Regulator 5% 2 5mA 45Ω 50nA 1.8 x 1.35 x 1.05mm -
RS-stocknr. 145-3618
FabrikantnummerMMSZ4704T1G
FabrikantON Semiconductor
€ 0,016
Each (On a Reel of 3000)
Aantal stuks
Single 17V Surface Mount 1 500 mW SOD-123 Voltage Regulator - 2 0.05mA - 50nA 2.84 x 1.8 x 1.25mm -
RS-stocknr. 136-4871
FabrikantnummerBZX79-C3V3,133
FabrikantNexperia
€ 0,04
Each (In a Pack of 100)
Aantal stuks
Single 3.3V Through Hole 1 500 mW SOD27 (DO-35) Voltage Regulator ±2 %, ±5% 2 5mA 600 Ω @ 1 mA - 1.85 (Dia.) x 4.25mm -
RS-stocknr. 802-1881
FabrikantnummerMMSZ4714T1G
FabrikantON Semiconductor
€ 0,012
Each (On a Tape of 200)
Aantal stuks
Single 33V Surface Mount 1 500 mW SOD-123 Voltage Regulator - 2 0.05mA - 10nA 2.84 x 1.8 x 1.25mm -
RS-stocknr. 103-2950
FabrikantnummerBZX84C15LT1G
FabrikantON Semiconductor
€ 0,018
Each (On a Reel of 3000)
Aantal stuks
Single 15V Surface Mount 1 300 mW SOT-23 Voltage Regulator 6% 3 5mA 30Ω 50nA 2.9 x 1.3 x 0.94mm -
RS-stocknr. 145-5213
FabrikantnummerMMSZ4714T1G
FabrikantON Semiconductor
€ 0,018
Each (On a Reel of 3000)
Aantal stuks
Single 33V Surface Mount 1 500 mW SOD-123 Voltage Regulator - 2 0.05mA - 10nA 2.84 x 1.8 x 1.25mm -
RS-stocknr. 812-493
FabrikantnummerBZX85C13V
FabrikantMagnatec
€ 0,452
Each (In a Pack of 5)
Aantal stuks
Single 13V Through Hole 1 1.3 W DO-41 Voltage Regulator 5% 2 20mA 400Ω 500nA 2.5 (Dia.) x 4.1mm -
RS-stocknr. 792-5307
Fabrikantnummer1N5337BRLG
FabrikantON Semiconductor
€ 0,291
Each (In a Pack of 20)
Aantal stuks
Single 4.7V Through Hole 1 5 W - Voltage Regulator 5% 2 260mA 5µA 3.68 (Dia.) x 8.89mm -
RS-stocknr. 818-5061
FabrikantnummerTZX3V9C-TR
FabrikantVishay
€ 0,053
Each (In a Pack of 200)
Aantal stuks
Single 4V Through Hole 1 500 mW DO-35 Voltage Regulator 3% 2 5mA 100Ω 5µA 1.7 (Dia.) x 3.9mm -
RS-stocknr. 163-1941
Fabrikantnummer1N5946BRLG
FabrikantON Semiconductor
€ 0,084
Each (On a Reel of 6000)
Aantal stuks
Single 75V Through Hole 1 3 W Case 59-10 Voltage Regulator 5% 2 5mA 140Ω 250nA 2.7 (Dia.) x 5.2mm -
RS-stocknr. 816-7971
FabrikantnummerBZX84-A6V2
FabrikantNexperia
€ 0,172
Each (In a Pack of 20)
Aantal stuks
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. 545-3049
FabrikantnummerMMSZ5231BT1G
FabrikantON Semiconductor
€ 0,127
Each (In a Pack of 20)
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. 625-6518
Fabrikantnummer1N5378BRLG
FabrikantON Semiconductor
€ 0,406
Each (In a Pack of 5)
Aantal stuks
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 -