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. 163-1952
Mfr. Part No.1SMA5923BT3G
€0.052
Each (On a Reel of 5000)
units
Single 8.2V Surface Mount 1 1.5 W SMA Voltage Regulator 5% 2 45.7mA 3.5 Ω, 400Ω 2.5µA 4.57 x 2.92 x 2.05mm -
RS Stock No. 800-8960
Mfr. Part No.1SMA5923BT3G
€0.048
Each (On a Tape of 50)
units
Single 8.2V Surface Mount 1 1.5 W SMA Voltage Regulator 5% 2 45.7mA 3.5 Ω, 400Ω 2.5µA 4.57 x 2.92 x 2.05mm -
RS Stock No. 163-2516
Mfr. Part No.MMSZ4684T1G
€0.031
Each (On a Reel of 3000)
units
Single 3.3V Surface Mount 1 500 mW SOD-123 Voltage Regulator 5% 2 0.05mA - 7.5µA 2.69 x 1.6 x 1.12mm -
RS Stock No. 103-3911
Mfr. Part No.1N5388BRLG
€0.112
Each (On a Reel of 4000)
units
Single 200V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 5mA 480Ω 500nA 8.89 x 3.68 x 3.68mm -
RS Stock No. 654-7527
Mfr. Part No.1N5388BRLG
€0.388
Each (In a Pack of 5)
units
Single 200V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 5mA 480Ω 500nA 8.89 x 3.68 x 3.68mm -
RS Stock No. 178-4832
Mfr. Part No.1N5388BG
€0.13
Each (In a Bag of 1000)
units
Single 200V Through Hole 1 5 W Surmetic 40 Voltage Regulator 5% 2 5mA 480Ω 500nA 3.68 (Dia.) x 8.89mm -
RS Stock No. 774-3325
Mfr. Part No.1N5388BG
€0.304
Each (In a Pack of 10)
units
Single 200V Through Hole 1 5 W Surmetic 40 Voltage Regulator 5% 2 5mA 480Ω 500nA 3.68 (Dia.) x 8.89mm -
RS Stock No. 687-8250
Mfr. Part No.MMSZ4684T1G
€0.144
Each (In a Pack of 25)
units
Single 3.3V Surface Mount 1 500 mW SOD-123 Voltage Regulator 5% 2 0.05mA - 7.5µA 2.69 x 1.6 x 1.12mm -
RS Stock No. 124-9920
Mfr. Part No.1N5350BRLG
€0.102
Each (On a Reel of 4000)
units
Single 13V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 100mA 2.5 Ω, 100Ω 1µA 3.68 (Dia.) x 8.89mm -
RS Stock No. 145-3277
Mfr. Part No.1N5350BG
€0.122
Each (In a Box of 1000)
units
Single 13V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 100mA 2.5Ω 1µA 8.89 x 3.68 x 3.68mm -
RS Stock No. 792-5331
Mfr. Part No.1SMA5914BT3G
€0.257
Each (In a Pack of 20)
units
Single 3.6V Surface Mount 1 1.5 W SMA Voltage Regulator 5% 2 104.2mA 35.5µA 4.57 x 2.92 x 2.05mm -
RS Stock No. 800-8762
Mfr. Part No.1N5350BRLG
€0.293
Each (In a Pack of 50)
units
Single 13V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 100mA 2.5Ω, 100 Ω 1µA 3.68 (Dia.) x 8.89mm -
RS Stock No. 163-1949
Mfr. Part No.1SMA5914BT3G
€0.078
Each (On a Reel of 5000)
units
Single 3.6V Surface Mount 1 1.5 W SMA Voltage Regulator 5% 2 104.2mA 35.5µA 4.57 x 2.92 x 2.05mm -
RS Stock No. 463-577
Mfr. Part No.1N5350BG
€0.293
Each (In a Pack of 10)
units
Single 13V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 100mA 2.5Ω 1µA 8.89 x 3.68 x 3.68mm -
RS Stock No. 124-9924
Mfr. Part No.1N5369BRLG
€0.105
Each (On a Reel of 4000)
units
Single 51V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 25mA 27Ω 500nA 8.89 x 3.68 x 3.68mm -
RS Stock No. 805-0047
Mfr. Part No.1N4733ATR
€0.054
Each (In a Pack of 100)
units
Single 5.1V Through Hole 1 1 W DO-41 General Purpose 5% 2 49mA 10µA 2.72 (Dia.) x 5.2mm -
RS Stock No. 774-3307
Mfr. Part No.1N5369BG
€0.344
Each (In a Pack of 10)
units
Single 51V Through Hole 1 5 W Surmetic 40 Voltage Regulator 5% 2 25mA 230Ω 500nA 3.68 (Dia.) x 8.89mm -
RS Stock No. 163-1960
Mfr. Part No.1SMA5936BT3G
€0.078
Each (On a Reel of 5000)
units
Single 30V Surface Mount 1 1.5 W SMA Voltage Regulator 5% 2 12.5mA 26Ω 500nA 4.57 x 2.92 x 2.05mm -
RS Stock No. 654-7678
Mfr. Part No.1N5369BRLG
€0.398
Each (In a Pack of 5)
units
Single 51V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 25mA 27Ω 500nA 8.89 x 3.68 x 3.68mm -
RS Stock No. 792-5369
Mfr. Part No.1SMA5936BT3G
€0.257
Each (On a Tape of 20)
units
Single 30V Surface Mount 1 1.5 W SMA Voltage Regulator 5% 2 12.5mA 26Ω 500nA 4.57 x 2.92 x 2.05mm -