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. 163-0833
Mfr. Part No.1N5336BG
MYR0.696
Each (In a Box of 1000)
units
Single 4.3V Through Hole 1 5 W Surmetic 40 Voltage Regulator 5% 2 290mA 500Ω 10µA 3.68 (Dia.) x 8.89mm -
RS Stock No. 179-1178
Mfr. Part No.BZX79-C6V8,113
BrandNexperia
MYR0.083
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. 476-0172
Mfr. Part No.UDZSTE-17 5.6B
BrandROHM
MYR0.561
Each (In a Pack of 100)
units
Single 5.6V Surface Mount 1 200 mW SOD-323F Voltage Regulator 2% 2 5mA 60Ω 1µA 1.7 x 1.25 x 0.7mm -
RS Stock No. 263-6667
Mfr. Part No.UDZSTE-175.6B
BrandROHM
MYR0.832
Each (In a Pack of 10)
units
Single 5.6V Surface Mount 1 200 mW SOD-323F Voltage Regulator 2% 2 5mA 60Ω 1µA 1.7 x 1.25 x 0.7mm -
RS Stock No. 751-3770
Mfr. Part No.BZT52C4V3-7-F
MYR0.285
Each (In a Pack of 250)
units
Single 4.3V Surface Mount 1 500 mW SOD-123 Voltage Regulator 7% 2 5mA 90Ω 3µA 2.85 x 1.7 x 1.35mm -
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. 774-3280
Mfr. Part No.1N5336BG
MYR1.848
Each (In a Pack of 10)
units
Single 4.3V Through Hole 1 5 W Surmetic 40 Voltage Regulator 5% 2 290mA 500Ω 10µA 3.68 (Dia.) x 8.89mm -
RS Stock No. 103-7577
Mfr. Part No.BZV55-C5V1,115
BrandNexperia
MYR0.123
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. 145-3697
Mfr. Part No.1SMB5931BT3G
MYR0.424
Each (On a Reel of 2500)
units
Single 18V Surface Mount 1 3 W SMB Voltage Regulator 5% 2 20.8mA 12Ω 1µA 4.6 x 3.95 x 2.28mm -
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. 122-0910
Mfr. Part No.BZT52C4V3-7-F
MYR0.131
Each (On a Reel of 3000)
units
Single 4.3V Surface Mount 1 500 mW SOD-123 Voltage Regulator 7% 2 5mA 90Ω 3µA 2.85 x 1.7 x 1.35mm -
RS Stock No. 463-379
Mfr. Part No.1N5333BG
MYR1.718
Each (In a Pack of 10)
units
Single 3.3V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 380mA 300µA 8.89 x 3.68 x 3.68mm -
RS Stock No. 103-5046
Mfr. Part No.1N5365BRLG
MYR0.587
Each (On a Reel of 4000)
units
Single 36V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 30mA 11Ω 500nA 8.89 x 3.68 x 3.68mm -
RS Stock No. 121-9560
Mfr. Part No.MMSZ5226B-7-F
MYR0.123
Each (On a Reel of 3000)
units
Single 3.3V Surface Mount 1 500 mW SOD-123 Voltage Regulator 5% 2 20mA 28Ω 25µA 2.85 x 1.7 x 1.35mm -
RS Stock No. 103-5132
Mfr. Part No.1N5365BG
MYR0.582
Each (In a Box of 1000)
units
Single 36V Through Hole 1 5 W Surmetic 40 Voltage Regulator 5% 2 30mA 160Ω 500nA 3.68 (Dia.) x 8.89mm -
RS Stock No. 102-1396
Mfr. Part No.1N5359BG
MYR0.633
Each (In a Box of 1000)
units
Single 24V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 50mA 3.5Ω 500nA 8.89 x 3.68 x 3.68mm -
RS Stock No. 654-7640
Mfr. Part No.1N5359BRLG
MYR1.75
Each (In a Pack of 5)
units
Single 24V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 50mA 3.5Ω 500nA 8.89 x 3.68 x 3.68mm -
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. 774-3303
Mfr. Part No.1N5365BG
MYR1.73
Each (In a Pack of 10)
units
Single 36V Through Hole 1 5 W Surmetic 40 Voltage Regulator 5% 2 30mA 160Ω 500nA 3.68 (Dia.) x 8.89mm -
RS Stock No. 163-2193
Mfr. Part No.MM3Z15VT1G
MYR0.109
Each (On a Reel of 3000)
units
Single 15V Surface Mount 1 200 mW SOD-323 Voltage Regulator 5% 2 5mA 30Ω 50nA 1.8 x 1.35 x 1mm -