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. 484-3261
Mfr. Part No.BZV55-B6V2,115
BrandNexperia
SGD0.278
Each (In a Pack of 50)
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Single 6.2V Surface Mount 1 500 mW MiniMELF Voltage Regulator 2% 2 5mA 10Ω 3µA 3.7mm -
RS Stock No. 484-3205
Mfr. Part No.BZV55-B10,115
BrandNexperia
SGD0.075
Each (In a Pack of 50)
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Single 10V Surface Mount 1 500 mW MiniMELF Voltage Regulator 2% 2 5mA 20Ω 200nA 3.7mm -
RS Stock No. 145-3104
Mfr. Part No.BZX84C27LT1G
SGD0.021
Each (On a Reel of 3000)
units
Single 27V Surface Mount 1 300 mW SOT-23 Voltage Regulator 7% 3 2mA 80Ω 50nA 2.9mm -
RS Stock No. 166-1243
Mfr. Part No.BZX79-C11,113
BrandNexperia
SGD0.027
Each (On a Reel of 5000)
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Single 11V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 5mA 20Ω 100nA 4.25mm -
RS Stock No. 178-7582
Mfr. Part No.MMSZ5248BT1G
SGD0.053
Each (On a Reel of 3000)
units
Single 18V Surface Mount 1 500 mW SOD-123 Voltage Regulator 5% 2 7mA 21Ω 100nA 2.69mm -
RS Stock No. 800-8784
Mfr. Part No.1N5372BRLG
SGD0.472
Each (In a Pack of 50)
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Single 62V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 20mA 42 Ω, 400 Ω 500nA - 3.68mm
RS Stock No. 166-0505
Mfr. Part No.BZV55-B6V2,115
BrandNexperia
SGD0.032
Each (On a Reel of 2500)
units
Single 6.2V Surface Mount 1 500 mW MiniMELF Voltage Regulator 2% 2 5mA 10Ω 3µA 3.7mm -
RS Stock No. 163-1930
Mfr. Part No.1N5372BRLG
SGD0.188
Each (On a Reel of 4000)
units
Single 62V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 20mA 42 Ω, 400 Ω 500nA - 3.68mm
RS Stock No. 179-1140
Mfr. Part No.BZV85-C15,113
BrandNexperia
SGD0.066
Each (On a Reel of 5000)
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Single 15V Through Hole 1 1.3 W DO-41 Voltage Regulator ±5% 2 15mA 15Ω 50nA 4.8mm -
RS Stock No. 436-8186
Mfr. Part No.BZX84-C15,215
BrandNexperia
SGD0.049
Each (In a Pack of 50)
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Single 15V Surface Mount 1 250 mW SOT-23 Voltage Regulator 5% 3 5mA 30Ω 50nA 3mm -
RS Stock No. 169-9125
Mfr. Part No.1N4744A R0
SGD0.102
Each (On a Reel of 5000)
units
Single 15V Through Hole 1 1 W DO-41 Voltage Regulator 5% 2 17mA 14Ω 5µA 5.2mm -
RS Stock No. 788-491
Mfr. Part No.BZV55-C9V1,115
BrandNexperia
SGD0.071
Each (In a Pack of 25)
units
Single 9.1V Surface Mount 1 500 mW MiniMELF Voltage Regulator 5% 2 5mA 15Ω 500nA 3.7mm -
RS Stock No. 545-3308
Mfr. Part No.1SMB5913BT3G
SGD0.514
Each (In a Pack of 25)
units
Single 3.3V Surface Mount 1 550 mW SMB Voltage Regulator 5% 2 113.6mA 10Ω 100µA 4.32mm -
RS Stock No. 793-0790
Mfr. Part No.MMBZ5222BLT1G
SGD0.063
Each (On a Tape of 200)
units
Single 2.5V Surface Mount 1 300 mW SOT-23 Voltage Regulator 5% 3 20mA 30Ω 100µA 3.04mm -
RS Stock No. 687-8187
Mfr. Part No.BZX84C27LT1G
SGD0.081
Each (In a Pack of 25)
units
Single 27V Surface Mount 1 300 mW SOT-23 Voltage Regulator 7% 3 2mA 80Ω 50nA 2.9mm -
RS Stock No. 700-2539
Mfr. Part No.EDZTE615.1B
BrandROHM
SGD0.121
Each (In a Pack of 10)
units
Single 5.1V Surface Mount 1 100 mW EMD Voltage Regulator 2% 2 5mA 80Ω 2µA 1.2mm -
RS Stock No. 509-734
Mfr. Part No.BZX79-C11,113
BrandNexperia
SGD0.043
Each (In a Pack of 200)
units
Single 11V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 5mA 20Ω 100nA 4.25mm -
RS Stock No. 545-3190
Mfr. Part No.MMSZ5248BT1G
SGD0.233
Each (In a Pack of 20)
units
Single 18V Surface Mount 1 500 mW SOD-123 Voltage Regulator 5% 2 7mA 21Ω 100nA 2.69mm -
RS Stock No. 772-6560
Mfr. Part No.RD5.6UJ-T1-A
SGD0.157
Each (On a Reel of 50)
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Single 5.6V Surface Mount 1 150 mW - Voltage Regulator - 2 0.5mA 200Ω 1µA 1.3mm -
RS Stock No. 165-8828
Mfr. Part No.DDZ6V2B-7
SGD0.037
Each (On a Reel of 3000)
units
Single 6.2V Surface Mount 1 500 mW SOD-123 General Purpose 2.5% 2 20mA 500nA 2.85mm -
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