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. 544-3597
Mfr. Part No.BZX79-C5V1,113
BrandNexperia
PHP4.521
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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
PHP1.059
Each (On a Tape of 10000)
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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. 136-4856
Mfr. Part No.BZX79-C5V1,133
BrandNexperia
PHP2.44
Each (In a Pack of 100)
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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. 103-7574
Mfr. Part No.BZX79-C5V1,113
BrandNexperia
PHP0.819
Each (On a Reel of 10000)
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Single 5.1V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 5mA 60Ω 2µA 4.25mm -
RS Stock No. 544-4506
Mfr. Part No.BZX79-C33,113
BrandNexperia
PHP3.467
Each (In a Pack of 20)
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Single 33V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 2mA 80Ω 50nA 4.25mm -
RS Stock No. 179-1180
Mfr. Part No.BZX79-C33,113
BrandNexperia
PHP1.255
Each (On a Reel of 10000)
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Single 33V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 2mA 80Ω 50nA 4.25mm -
RS Stock No. 509-730
Mfr. Part No.BZX79-C30,113
BrandNexperia
PHP1.952
Each (In a Pack of 100)
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Single 30V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 2mA 80Ω 50nA 4.25mm -
RS Stock No. 166-0304
Mfr. Part No.BZX79-C8V2,113
BrandNexperia
PHP0.956
Each (On a Reel of 10000)
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Single 8.2V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 5mA 15Ω 700nA 4.25mm -
RS Stock No. 179-1175
Mfr. Part No.BZX79-C30,113
BrandNexperia
PHP1.255
Each (On a Reel of 10000)
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Single 30V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 2mA 80Ω 50nA 4.25mm -
RS Stock No. 544-4449
Mfr. Part No.BZX79-C8V2,113
BrandNexperia
PHP2.542
Each (In a Pack of 20)
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Single 8.2V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 5mA 15Ω 700nA 4.25mm -
RS Stock No. 121-9480
Mfr. Part No.BZX84C15-7-F
PHP0.723
Each (On a Reel of 3000)
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Single 15V Surface Mount 1 350 mW SOT-23 Voltage Regulator 6% 3 5mA 200Ω 100nA 3mm -
RS Stock No. 738-4960
Mfr. Part No.BZX84C15-7-F
PHP1.774
Each (On a Tape of 200)
units
Single 15V Surface Mount 1 350 mW SOT-23 Voltage Regulator 6% 3 5mA 200Ω 100nA 3mm -
RS Stock No. 818-5140
Mfr. Part No.TZX6V8D-TR
BrandVishay
PHP1.22
Each (In a Pack of 200)
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Single 7V Through Hole 1 500 mW DO-35 Voltage Regulator 2% 2 5mA 15Ω 1µA 3.9mm 1.7mm
RS Stock No. 145-2744
Mfr. Part No.TZX6V8D-TR
BrandVishay
PHP1.088
Each (On a Reel of 10000)
units
Single 7V Through Hole 1 500 mW DO-35 Voltage Regulator 2% 2 5mA 15Ω 1µA 3.9mm 1.7mm
RS Stock No. 100-9507
Mfr. Part No.1N5333BG
PHP7.205
Each (In a Box of 1000)
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Single 3.3V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 380mA 300µA 8.89mm -
RS Stock No. 463-379
Mfr. Part No.1N5333BG
PHP12.34
Each (In a Pack of 10)
units
Single 3.3V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 380mA 300µA 8.89mm -
RS Stock No. 103-3897
Mfr. Part No.1N5333BRLG
PHP6.015
Each (On a Reel of 4000)
units
Single 3.3V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 380mA 300µA 8.89mm -
RS Stock No. 625-6445
Mfr. Part No.1N5333BRLG
PHP19.81
Each (In a Pack of 5)
units
Single 3.3V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 380mA 300µA 8.89mm -
RS Stock No. 544-4556
Mfr. Part No.BZV55-C15,115
BrandNexperia
PHP7.019
Each (In a Pack of 20)
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Single 15V Surface Mount 1 500 mW MiniMELF Voltage Regulator 5% 2 5mA 30Ω 50nA 3.7mm -
RS Stock No. 166-1366
Mfr. Part No.BZX384-C5V1,115
BrandNexperia
PHP0.975
Each (On a Reel of 3000)
units
Single 5.1V Surface Mount 1 300 mW UMD Voltage Regulator 5% 2 5mA 60Ω 2µA 1.8mm -
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