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. 169-0673
Mfr. Part No.BZT52C30S-7-F
kr 0,152
Each (On a Reel of 3000)
Units
Single 30V Surface Mount 1 200 mW SOD-323 Voltage Regulator 7% 2 2mA 80Ω 100nA 1.8 x 1.4 x 1.1mm -
RS Stock No. 751-3720
Mfr. Part No.BZT52C30S-7-F
kr 0,154
Each (On a Tape of 100)
Units
Single 30V Surface Mount 1 200 mW SOD-323 Voltage Regulator 7% 2 2mA 80Ω 100nA 1.8 x 1.4 x 1.1mm -
RS Stock No. 169-7341
Mfr. Part No.DFLZ6V8-7
kr 0,801
Each (On a Reel of 3000)
Units
Single 6.8V Surface Mount 1 1 W POWERDI123 General Purpose 5% 2 100mA 5µA 3 x 1.93 x 1mm -
RS Stock No. 822-2491
Mfr. Part No.DFLZ6V8-7
kr 0,816
Each (In a Pack of 25)
Units
Single 6.8V Surface Mount 1 1 W POWERDI123 General Purpose 5% 2 100mA 5µA 3 x 1.93 x 1mm -
RS Stock No. 823-3154
Mfr. Part No.SMAZ6V8-13-F
kr 2,716
Each (In a Pack of 50)
Units
Single 6.8V Surface Mount 1 1 W SMA General Purpose 5% 2 100mA 5µA 4.6 x 2.92 x 2.1mm -
RS Stock No. 122-3264
Mfr. Part No.SMAZ6V8-13-F
kr 0,868
Each (On a Reel of 5000)
Units
Single 6.8V Surface Mount 1 1 W SMA General Purpose 5% 2 100mA 5µA 4.6 x 2.92 x 2.1mm -
RS Stock No. 122-0909
Mfr. Part No.BZT52C3V6S-7-F
kr 0,386
Each (On a Reel of 3000)
Units
Single 3.6V Surface Mount 1 200 mW SOD-323 Voltage Regulator 6% 2 5mA 90Ω 5µA 1.8 x 1.4 x 1.1mm -
RS Stock No. 751-3796
Mfr. Part No.BZT52C5V6T-7
kr 0,198
Each (In a Pack of 250)
Units
Single 5.6V Surface Mount 1 300 mW SOD-523 Voltage Regulator 7% 2 5mA 40Ω 1µA 1.3 x 0.9 x 0.65mm -
RS Stock No. 751-3755
Mfr. Part No.BZT52C3V6S-7-F
kr 0,809
Each (In a Pack of 100)
Units
Single 3.6V Surface Mount 1 200 mW SOD-323 Voltage Regulator 6% 2 5mA 90Ω 5µA 1.8 x 1.4 x 1.1mm -
RS Stock No. 166-0343
Mfr. Part No.BZT52C30-7-F
kr 0,111
Each (On a Reel of 3000)
Units
Single 30V Surface Mount 1 500 mW SOD-123 Voltage Regulator 7% 2 2mA 80Ω 100nA 2.85 x 1.7 x 1.35mm -
RS Stock No. 922-8358
Mfr. Part No.BZT52C5V6T-7
kr 0,189
Each (On a Reel of 3000)
Units
Single 5.6V Surface Mount 1 300 mW SOD-523 Voltage Regulator 7% 2 5mA 40Ω 1µA 1.3 x 0.9 x 0.65mm -
RS Stock No. 751-3727
Mfr. Part No.BZT52C30-7-F
kr 0,108
Each (On a Tape of 250)
Units
Single 30V Surface Mount 1 500 mW SOD-123 Voltage Regulator 7% 2 2mA 80Ω 100nA 2.85 x 1.7 x 1.35mm -
RS Stock No. 708-1854
Mfr. Part No.AZ23C5V1-7-F
kr 2,281
Each (In a Pack of 50)
Units
Common Anode 5.1V Surface Mount 2 300 mW SOT-23 ESD Suppressor 5% 3 5mA 480Ω 100nA 3 x 1.4 x 1.1mm -
RS Stock No. 166-0348
Mfr. Part No.BZX84C33-7-F
kr 0,277
Each (On a Reel of 3000)
Units
Single 33V Surface Mount 1 350 mW SOT-23 Voltage Regulator 6% 3 2mA 80Ω 100nA 3 x 1.4 x 1.1mm -
RS Stock No. 146-0578
Mfr. Part No.MMBZ5245B-7-F
kr 0,241
Each (On a Reel of 3000)
Units
Single 15V Surface Mount 1 350 mW SOT-23 General Purpose 5% 3 8.5mA 16Ω 100nA 3 x 1.4 x 1.1mm -
RS Stock No. 823-1524
Mfr. Part No.MMSZ5235B-7-F
kr 0,309
Each (In a Pack of 200)
Units
Single 6.8V Surface Mount 1 500 mW SOD-123 General Purpose 5% 2 20mA 3µA 2.85 x 1.7 x 1.35mm -
RS Stock No. 146-0448
Mfr. Part No.MMBZ5230B-7-F
kr 0,12
Each (On a Reel of 3000)
Units
Single 4.7V Surface Mount 1 350 mW SOT-23 General Purpose 5% 3 20mA 19Ω 5µA 3 x 1.4 x 1.1mm -
RS Stock No. 165-8872
Mfr. Part No.BZX84C39-7-F
kr 0,205
Each (On a Reel of 3000)
Units
Single 39V Surface Mount 1 350 mW SOT-23 General Purpose 5% 3 2mA 130Ω 100nA 3 x 1.4 x 1.1mm -
RS Stock No. 166-0422
Mfr. Part No.BZT52C3V6T-7
kr 0,295
Each (On a Reel of 3000)
Units
Single 3.6V Surface Mount 1 300 mW SOD-523 Voltage Regulator 6% 2 5mA 90Ω 5µA 1.3 x 0.9 x 0.65mm -
RS Stock No. 708-1848
Mfr. Part No.AZ23C3V3-7-F
kr 0,979
Each (In a Pack of 50)
Units
Common Anode 3.3V Surface Mount 2 300 mW SOT-23 ESD Suppressor 5% 3 5mA 500Ω 100nA 3 x 1.4 x 1.1mm -