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. 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. 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. 625-6568
Mfr. Part No.1N5349BRLG
MYR1.599
Each (In a Pack of 10)
units
Single 12V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 100mA 2.5Ω 2µA 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. 463-808
Mfr. Part No.1N5359BG
MYR1.815
Each (In a Pack of 10)
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. 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. 751-4553
Mfr. Part No.MMSZ5226B-7-F
MYR0.302
Each (In a Pack of 250)
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. 100-7582
Mfr. Part No.1N5349BG
MYR0.65
Each (In a Box of 1000)
units
Single 12V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 100mA 2.5Ω 2µA 8.89 x 3.68 x 3.68mm -
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. 103-3897
Mfr. Part No.1N5333BRLG
MYR0.565
Each (On a Reel of 4000)
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. 654-7656
Mfr. Part No.1N5365BRLG
MYR2.206
Each (In a Pack of 5)
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. 103-3919
Mfr. Part No.1N5359BRLG
MYR0.534
Each (On a Reel of 4000)
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. 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. 103-3903
Mfr. Part No.1N5349BRLG
MYR0.519
Each (On a Reel of 4000)
units
Single 12V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 100mA 2.5Ω 2µA 8.89 x 3.68 x 3.68mm -
RS Stock No. 166-1928
Mfr. Part No.BZX85C16
MYR0.202
Each (In a Bag of 1000)
units
Single 16V Through Hole 1 1 W DO-41 Voltage Regulator 5% 2 15mA 15Ω 500nA 2.72 (Dia.) x 5.2mm -
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. 805-0110
Mfr. Part No.1N5226BTR
MYR0.17
Each (In a Pack of 200)
units
Single 3.3V Through Hole 1 500 mW DO-35 General Purpose 5% 2 20mA 28Ω 25µA 1.91 (Dia.) x 4.56mm -
RS Stock No. 438-2586
Mfr. Part No.BZX84-C3V3,215
BrandNexperia
MYR0.079
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. 178-7592
Mfr. Part No.MMSZ4689T1G
MYR0.135
Each (On a Reel of 3000)
units
Single 5.1V Surface Mount 1 500 mW SOD-123 Voltage Regulator 5% 2 0.05mA - 10µA 2.69 x 1.6 x 1.12mm -