Zener Diodes

A Zener diode is a type of semiconductor diode that is different to a normal diode as it allows current to flow from its anode to its cathode in either a forward or reverse direction, but only when exposed to enough voltage. Zener diodes have been designed to work reliably in the breakdown region, unlike normal diodes which would overheat. They are the most common and the handiest solutions to a number of needs in a circuit design.

Zener diodes are designed to change the direction of 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 that change a direction of flow is called Zener Voltage or Breakdown Voltage. It could be defined for specific diodes anywhere from 1.8 to 200 V.

Key attributes of a Zener diode are:

• Device configuration including a dual or common anode
• Type of Zener, including avalanche or voltage regulator
• Voltage tolerance
• Voltage drift with temperature
• Impedance (max)

What is a typical application 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.

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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. 124-2301
Mfr. Part No.BZV55-C15,115
BrandNexperia
SGD0.035
Each (On a Reel of 2500)
units
Single 15V Surface Mount 1 500 mW MiniMELF Voltage Regulator 5% 2 5mA 30Ω 50nA 3.7 x 1.6 x 1.6mm -
RS Stock No. 544-4556
Mfr. Part No.BZV55-C15,115
BrandNexperia
SGD0.182
Each (In a Pack of 20)
units
Single 15V Surface Mount 1 500 mW MiniMELF Voltage Regulator 5% 2 5mA 30Ω 50nA 3.7 x 1.6 x 1.6mm -
RS Stock No. 103-3899
Mfr. Part No.1N5373BRLG
SGD0.17
Each (On a Reel of 4000)
units
Single 68V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 20mA 44Ω 500nA 8.89 x 3.68 x 3.68mm -
RS Stock No. 625-6473
Mfr. Part No.1N5373BRLG
SGD0.462
Each (In a Pack of 5)
units
Single 68V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 20mA 44Ω 500nA 8.89 x 3.68 x 3.68mm -
RS Stock No. 625-6568
Mfr. Part No.1N5349BRLG
SGD0.488
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. 463-278
Mfr. Part No.1N5349BG
SGD0.495
Each (In a Pack of 10)
units
Single 12V Through Hole 1 5 W 017AA-01 Voltage Regulator ±5% 2 100mA 2.5Ω 2µA 8.89 x 3.68 x 3.68mm -
RS Stock No. 100-7582
Mfr. Part No.1N5349BG
SGD0.192
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. 103-3903
Mfr. Part No.1N5349BRLG
SGD0.174
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. 169-8628
Mfr. Part No.1N4728ATR
SGD0.055
Each (On a Reel of 3000)
units
Single 3.3V Through Hole 1 1 W DO-41 General Purpose 5% 2 76mA 10Ω 100µA 2.72 (Dia.) x 5.2mm -
RS Stock No. 805-0034
Mfr. Part No.1N4728ATR
SGD0.082
Each (In a Pack of 100)
units
Single 3.3V Through Hole 1 1 W DO-41 General Purpose 5% 2 76mA 10Ω 100µA 2.72 (Dia.) x 5.2mm -
RS Stock No. 145-2655
Mfr. Part No.1N5221B-TR
BrandVishay
SGD0.044
Each (On a Reel of 10000)
units
Single 2.4V Through Hole 1 500 mW DO-35 General Purpose 5% 2 20mA 30Ω 100µA 1.7 (Dia.) x 3.9mm -
RS Stock No. 625-6439
Mfr. Part No.1N5362BRLG
SGD0.47
Each (In a Pack of 5)
units
Single 28V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 50mA 500nA 8.89 x 3.68 x 3.68mm -
RS Stock No. 186-8758
Mfr. Part No.1N5362BG
SGD0.224
Each (In a Box of 1000)
units
Single 28V Through Hole 1 5 W CASE 017AA Voltage Regulator ±5% 2 50mA 130Ω 500nA 3.68 Dia. x 8.89mm -
RS Stock No. 625-6451
Mfr. Part No.1N5338BRLG
SGD0.66
Each (In a Pack of 5)
units
Single 5.1V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 240mA 1.5Ω 1µA 8.89 x 3.68 x 3.68mm -
RS Stock No. 163-2331
Mfr. Part No.1N5362BRLG
SGD0.188
Each (On a Reel of 4000)
units
Single 28V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 50mA 500nA 8.89 x 3.68 x 3.68mm -
RS Stock No. 100-7581
Mfr. Part No.1N5338BG
SGD0.192
Each (In a Box of 1000)
units
Single 5.1V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 240mA 1.5Ω 1µA 8.89 x 3.68 x 3.68mm -
RS Stock No. 811-5933
Mfr. Part No.1N5221B-TR
BrandVishay
SGD0.119
Each (In a Pack of 50)
units
Single 2.4V Through Hole 1 500 mW DO-35 General Purpose 5% 2 20mA 30Ω 100µA 1.7 (Dia.) x 3.9mm -
RS Stock No. 186-9203
Mfr. Part No.1N5362BG
SGD0.436
Each (In a Pack of 25)
units
Single 28V Through Hole 1 5 W CASE 017AA Voltage Regulator ±5% 2 50mA 130Ω 500nA 3.68 Dia. x 8.89mm -
RS Stock No. 463-274
Mfr. Part No.1N5338BG
SGD0.495
Each (In a Pack of 10)
units
Single 5.1V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 240mA 1.5Ω 1µA 8.89 x 3.68 x 3.68mm -
RS Stock No. 103-3898
Mfr. Part No.1N5338BRLG
SGD0.174
Each (On a Reel of 4000)
units
Single 5.1V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 240mA 1.5Ω 1µA 8.89 x 3.68 x 3.68mm -
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