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 Length Diameter
RS Stock No. 103-7574
Mfr. Part No.BZX79-C5V1,113
BrandNexperia
€0.015
Each (On a Reel of 10000)
units
Single 5.1V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 5mA 60Ω 2µA 4.25mm -
RS Stock No. 136-4788
Mfr. Part No.BZX79-C5V1,133
BrandNexperia
€0.015
Each (On a Tape of 10000)
units
Single 5.1V Through Hole 1 500 mW SOD27 (DO-35) Voltage Regulator ±2 %, ±5 % 2 5mA 480 Ω @ 1 mA - 4.25mm 1.85mm
RS Stock No. 544-3597
Mfr. Part No.BZX79-C5V1,113
BrandNexperia
€0.107
Each (In a Pack of 20)
units
Single 5.1V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 5mA 60Ω 2µA 4.25mm -
RS Stock No. 124-2303
Mfr. Part No.BZX79-C12,113
BrandNexperia
€0.015
Each (On a Reel of 10000)
units
Single 12V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 5mA 25Ω 100nA 4.25mm -
RS Stock No. 136-4856
Mfr. Part No.BZX79-C5V1,133
BrandNexperia
€0.032
Each (In a Pack of 100)
units
Single 5.1V Through Hole 1 500 mW SOD27 (DO-35) Voltage Regulator ±2 %, ±5 % 2 5mA 480 Ω @ 1 mA - 4.25mm 1.85mm
RS Stock No. 544-4477
Mfr. Part No.BZX79-C12,113
BrandNexperia
€0.107
Each (In a Pack of 20)
units
Single 12V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 5mA 25Ω 100nA 4.25mm -
RS Stock No. 103-7575
Mfr. Part No.BZX79-C10,113
BrandNexperia
€0.016
Each (On a Reel of 10000)
units
Single 10V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 5mA 20Ω 200nA 4.25mm -
RS Stock No. 544-4461
Mfr. Part No.BZX79-C10,113
BrandNexperia
€0.096
Each (In a Pack of 20)
units
Single 10V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 5mA 20Ω 200nA 4.25mm -
RS Stock No. 136-4796
Mfr. Part No.BZX79-C10,133
BrandNexperia
€0.016
Each (On a Tape of 10000)
units
Single 10V Through Hole 1 500 mW SOD27 (DO-35) Voltage Regulator ±2 %, ±5 % 2 5mA 150 Ω @ 1 mA - 4.25mm 1.85mm
RS Stock No. 136-4833
Mfr. Part No.BZX79-C10,133
BrandNexperia
€0.04
Each (In a Pack of 100)
units
Single 10V Through Hole 1 500 mW SOD27 (DO-35) Voltage Regulator ±2 %, ±5 % 2 5mA 150 Ω @ 1 mA - 4.25mm 1.85mm
RS Stock No. 813-3739
Mfr. Part No.Z4KE140A-E3/54
BrandVishay
€0.289
Each (In a Pack of 20)
units
Single 140V Through Hole 1 1.5 W DO-204AL Voltage Regulator 5% 2 5mA 900Ω 500nA 5.2mm 2.7mm
RS Stock No. 165-6935
Mfr. Part No.Z4KE140A-E3/54
BrandVishay
€0.158
Each (On a Reel of 5500)
units
Single 140V Through Hole 1 1.5 W DO-204AL Voltage Regulator 5% 2 5mA 900Ω 500nA 5.2mm 2.7mm
RS Stock No. 800-8960
Mfr. Part No.1SMA5923BT3G
€0.235
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, 400 Ω 2.5µA 4.57mm -
RS Stock No. 163-1952
Mfr. Part No.1SMA5923BT3G
€0.075
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, 400 Ω 2.5µA 4.57mm -
RS Stock No. 774-3325
Mfr. Part No.1N5388BG
€0.281
Each (In a Pack of 10)
units
Single 200V Through Hole 1 5 W Surmetic 40 Voltage Regulator 5% 2 5mA 480Ω 500nA 8.89mm 3.68mm
RS Stock No. 687-8250
Mfr. Part No.MMSZ4684T1G
€0.152
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 2.69mm -
RS Stock No. 178-4832
Mfr. Part No.1N5388BG
€0.11
Each (In a Bag of 1000)
units
Single 200V Through Hole 1 5 W Surmetic 40 Voltage Regulator 5% 2 5mA 480Ω 500nA 8.89mm 3.68mm
RS Stock No. 103-3911
Mfr. Part No.1N5388BRLG
€0.101
Each (On a Reel of 4000)
units
Single 200V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 5mA 480Ω 500nA 8.89mm -
RS Stock No. 654-7527
Mfr. Part No.1N5388BRLG
€0.364
Each (In a Pack of 5)
units
Single 200V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 5mA 480Ω 500nA 8.89mm -
RS Stock No. 163-2516
Mfr. Part No.MMSZ4684T1G
€0.028
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 2.69mm -
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