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. 812-8796
Mfr. Part No.BZX85C6V8-TR
BrandVishay
MYR0.551
Each (In a Pack of 200)
units
Single 6.8V Through Hole 1 1.3 W DO-41 General Purpose 6% 2 35mA 3.5Ω 1µA 2.6 (Dia.) x 4.1mm -
RS Stock No. 708-7940
Mfr. Part No.BZX85C6V8-TAP
BrandVishay
MYR0.551
Each (In a Pack of 100)
units
Single 6.8V Through Hole 1 1.3 W DO-41 Voltage Regulator 6% 2 35mA 3.5Ω 1µA 4.1 x 2.6 x 2.6mm -
RS Stock No. 169-6125
Mfr. Part No.BZX85C6V8-TAP
BrandVishay
MYR0.188
Each (On a Tape of 25000)
units
Single 6.8V Through Hole 1 1.3 W DO-41 Voltage Regulator 6% 2 35mA 3.5Ω 1µA 4.1 x 2.6 x 2.6mm -
RS Stock No. 177-7361
Mfr. Part No.BZX85C6V8-TR
BrandVishay
MYR0.221
Each (On a Reel of 5000)
units
Single 6.8V Through Hole 1 1.3 W DO-41 General Purpose 6% 2 35mA 3.5Ω 1µA 2.6 (Dia.) x 4.1mm -
RS Stock No. 165-2678
Mfr. Part No.BZX55C6V8-TAP
BrandVishay
MYR0.123
Each (On a Reel of 10000)
units
Single 6.8V Through Hole 1 500 mW DO-35 Voltage Regulator 6% 2 5mA 100nA 3.9 x 1.7 x 1.7mm -
RS Stock No. 818-5128
Mfr. Part No.TZX6V2C-TR
BrandVishay
MYR0.282
Each (In a Pack of 200)
units
Single 6.2V Through Hole 1 500 mW DO-35 Voltage Regulator 2% 2 5mA 15Ω 1µA 1.7 (Dia.) x 3.9mm -
RS Stock No. 145-2285
Mfr. Part No.TZX5V1B-TR
BrandVishay
MYR0.113
Each (On a Reel of 10000)
units
Single 5V Through Hole 1 500 mW DO-35 Voltage Regulator 2% 2 5mA 100Ω 5µA 1.7 (Dia.) x 3.9mm -
RS Stock No. 165-6260
Mfr. Part No.TZX6V2C-TR
BrandVishay
MYR0.108
Each (On a Reel of 10000)
units
Single 6.2V Through Hole 1 500 mW DO-35 Voltage Regulator 2% 2 5mA 15Ω 1µA 1.7 (Dia.) x 3.9mm -
RS Stock No. 708-7896
Mfr. Part No.BZX55C6V8-TAP
BrandVishay
MYR0.311
Each (In a Pack of 250)
units
Single 6.8V Through Hole 1 500 mW DO-35 Voltage Regulator 6% 2 5mA 100nA 3.9 x 1.7 x 1.7mm -
RS Stock No. 818-5099
Mfr. Part No.TZX5V1B-TR
BrandVishay
MYR0.311
Each (In a Pack of 200)
units
Single 5V Through Hole 1 500 mW DO-35 Voltage Regulator 2% 2 5mA 100Ω 5µA 1.7 (Dia.) x 3.9mm -
RS Stock No. 812-8507
Mfr. Part No.BZX55B10-TR
BrandVishay
MYR0.315
Each (In a Pack of 250)
units
Single 10V Through Hole 1 500 mW DO-35 Voltage Regulator 2% 2 5mA 15Ω 2µA 1.7 (Dia.) x 3.9mm -
RS Stock No. 813-3791
Mfr. Part No.ZM4742A-GS08
BrandVishay
MYR1.323
Each (In a Pack of 50)
units
Single 12V Surface Mount 1 1 W DO-213AB General Purpose 5% 2 21mA 5µA 2.6 (Dia.) x 5.2mm AEC-Q101
RS Stock No. 159-6370
Mfr. Part No.1N5252B-TR
BrandVishay
MYR0.105
Each (On a Reel of 10000)
units
Single 24V Through Hole 1 500 mW DO-35 General Purpose 5% 2 5.2mA 33Ω 100nA 1.7 (Dia.) x 3.9mm -
RS Stock No. 177-7370
Mfr. Part No.BZX85C2V7-TAP
BrandVishay
MYR0.241
Each (On a Tape of 5000)
units
Single 2.7V Through Hole 1 1.3 W DO-41 Voltage Regulator 7% 2 80mA 20Ω 150µA 4.1 x 2.6 x 2.6mm -
RS Stock No. 708-7912
Mfr. Part No.BZX85C2V7-TAP
BrandVishay
MYR0.503
Each (In a Pack of 100)
units
Single 2.7V Through Hole 1 1.3 W DO-41 Voltage Regulator 7% 2 80mA 20Ω 150µA 4.1 x 2.6 x 2.6mm -
RS Stock No. 159-6505
Mfr. Part No.BZM55C3V3-TR
BrandVishay
MYR0.16
Each (On a Reel of 2500)
units
Single 3.3V Surface Mount 1 500 mW MicroMELF Voltage Regulator 6% 2 5mA 90Ω 2µA 2 x 1.2 x 1.2mm -
RS Stock No. 710-4190
Mfr. Part No.BZM55C3V3-TR
BrandVishay
MYR0.315
Each (In a Pack of 100)
units
Single 3.3V Surface Mount 1 500 mW MicroMELF Voltage Regulator 6% 2 5mA 90Ω 2µA 2 x 1.2 x 1.2mm -
RS Stock No. 165-2639
Mfr. Part No.BZX55C5V1-TAP
BrandVishay
MYR0.123
Each (On a Reel of 10000)
units
Single 5.1V Through Hole 1 500 mW DO-35 Voltage Regulator 6% 2 5mA 550Ω 2µA 1.7 (Dia.) x 3.9mm -
RS Stock No. 811-6027
Mfr. Part No.1N5252B-TR
BrandVishay
MYR0.289
Each (In a Pack of 250)
units
Single 24V Through Hole 1 500 mW DO-35 General Purpose 5% 2 5.2mA 33Ω 100nA 1.7 (Dia.) x 3.9mm -
RS Stock No. 699-7809
Mfr. Part No.BZX55C5V1-TAP
BrandVishay
MYR0.311
Each (In a Pack of 250)
units
Single 5.1V Through Hole 1 500 mW DO-35 Voltage Regulator 6% 2 5mA 550Ω 2µA 1.7 (Dia.) x 3.9mm -