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. 509-100
Mfr. Part No.BZX84-C18,215
BrandNexperia
MYR0.165
Each (In a Pack of 200)
units
Single 18V Surface Mount 1 250 mW SOT-23 (TO-236AB) Voltage Regulator 5% 3 5mA 45Ω 50nA 3 x 1.4 x 1mm -
RS Stock No. 509-093
Mfr. Part No.BZX79-B6V2,113
BrandNexperia
MYR0.558
Each (In a Pack of 100)
units
Single 6.2V Through Hole 1 500 mW DO-35 Voltage Regulator 2% 2 5mA 10Ω 3µA 4.25 x 1.85 x 1.85mm -
RS Stock No. 166-1235
Mfr. Part No.BZX79-B6V2,113
BrandNexperia
MYR0.125
Each (On a Reel of 5000)
units
Single 6.2V Through Hole 1 500 mW DO-35 Voltage Regulator 2% 2 5mA 10Ω 3µA 4.25 x 1.85 x 1.85mm -
RS Stock No. 178-7104
Mfr. Part No.BZX84-C18,215
BrandNexperia
MYR0.085
Each (On a Reel of 3000)
units
Single 18V Surface Mount 1 250 mW SOT-23 (TO-236AB) Voltage Regulator 5% 3 5mA 45Ω 50nA 3 x 1.4 x 1mm -
RS Stock No. 544-3626
Mfr. Part No.BZX79-C6V8,113
BrandNexperia
MYR0.365
Each (In a Pack of 20)
units
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 Stock No. 544-4540
Mfr. Part No.BZV55-C5V1,115
BrandNexperia
MYR0.644
Each (In a Pack of 10)
units
Single 5.1V Surface Mount 1 500 mW MiniMELF Voltage Regulator 5% 2 5mA 60Ω 2µA 3.7 x 1.6 x 1.6mm -
RS Stock No. 179-1178
Mfr. Part No.BZX79-C6V8,113
BrandNexperia
MYR0.077
Each (On a Reel of 10000)
units
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 Stock No. 103-7577
Mfr. Part No.BZV55-C5V1,115
BrandNexperia
MYR0.10
Each (On a Reel of 2500)
units
Single 5.1V Surface Mount 1 500 mW MiniMELF Voltage Regulator 5% 2 5mA 60Ω 2µA 3.7 x 1.6 x 1.6mm -
RS Stock No. 788-362
Mfr. Part No.BZV55-C2V4,115
BrandNexperia
MYR0.717
Each (In a Pack of 25)
units
Single 2.4V Surface Mount 1 500 mW MiniMELF Voltage Regulator 5% 2 5mA 100Ω 50µA 3.7 x 1.6 x 1.6mm -
RS Stock No. 178-7066
Mfr. Part No.BZV55-C2V4,115
BrandNexperia
MYR0.123
Each (On a Reel of 2500)
units
Single 2.4V Surface Mount 1 500 mW MiniMELF Voltage Regulator 5% 2 5mA 100Ω 50µA 3.7 x 1.6 x 1.6mm -
RS Stock No. 438-2586
Mfr. Part No.BZX84-C3V3,215
BrandNexperia
MYR0.068
Each (On a Reel of 3000)
units
Single 3.3V Surface Mount 1 250 mW SOT-23 (TO-236AB) Voltage Regulator 5% 3 5mA 95Ω 5µA 3 x 1.4 x 1mm -
RS Stock No. 788-592
Mfr. Part No.BZV55-C27,115
BrandNexperia
MYR0.895
Each (In a Pack of 25)
units
Single 27V Surface Mount 1 500 mW MiniMELF Voltage Regulator 5% 2 2mA 80Ω 50nA 3.7 x 1.6 x 1.6mm -
RS Stock No. 485-4479
Mfr. Part No.BZV55-C6V8,115
BrandNexperia
MYR0.644
Each (In a Pack of 50)
units
Single 6.8V Surface Mount 1 500 mW MiniMELF Voltage Regulator 5% 2 5mA 15Ω 2µA 3.7 x 1.6 x 1.6mm -
RS Stock No. 484-5699
Mfr. Part No.BZV55-C4V7,115
BrandNexperia
MYR0.717
Each (In a Pack of 50)
units
Single 4.7V Surface Mount 1 500 mW MiniMELF Voltage Regulator 5% 2 5mA 80Ω 3µA 3.7 x 1.6 x 1.6mm -
RS Stock No. 166-0302
Mfr. Part No.BZX79-C4V3,113
BrandNexperia
MYR0.077
Each (On a Reel of 10000)
units
Single 4.3V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 5mA 90Ω 3µA 4.25 x 1.85 x 1.85mm -
RS Stock No. 178-7095
Mfr. Part No.BZX384-C10,115
BrandNexperia
MYR0.114
Each (On a Reel of 3000)
units
Single 10V Surface Mount 1 300 mW UMD Voltage Regulator 5% 2 5mA 20Ω 200nA 1.8 x 1.35 x 1.05mm -
RS Stock No. 103-7555
Mfr. Part No.BZV55-C4V7,115
BrandNexperia
MYR0.123
Each (On a Reel of 2500)
units
Single 4.7V Surface Mount 1 500 mW MiniMELF Voltage Regulator 5% 2 5mA 80Ω 3µA 3.7 x 1.6 x 1.6mm -
RS Stock No. 166-1226
Mfr. Part No.BZV85-C62,113
BrandNexperia
MYR0.18
Each (On a Reel of 5000)
units
Single 62V Through Hole 1 1.3 W DO-41 Voltage Regulator 5% 2 4mA 175Ω 50nA 4.8 x 2.6 x 2.6mm -
RS Stock No. 124-2301
Mfr. Part No.BZV55-C15,115
BrandNexperia
MYR0.123
Each (On a Reel of 2500)
units
Single 15V Surface Mount 1 500 mW MiniMELF Voltage Regulator 5% 2 5mA 30Ω 50nA 3.7 x 1.6 x 1.6mm -
RS Stock No. 507-885
Mfr. Part No.BZV85-C62,113
BrandNexperia
MYR0.388
Each (In a Pack of 100)
units
Single 62V Through Hole 1 1.3 W DO-41 Voltage Regulator 5% 2 4mA 175Ω 50nA 4.8 x 2.6 x 2.6mm -