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. 751-3736
Mfr. Part No.BZT52C3V0T-7
PHP3.36
Each (In a Pack of 100)
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Single 3V Surface Mount 1 300 mW SOD-523 Voltage Regulator 7% 2 5mA 95Ω 10µA 1.3mm -
RS Stock No. 103-3911
Mfr. Part No.1N5388BRLG
PHP6.41
Each (On a Reel of 4000)
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Single 200V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 5mA 480Ω 500nA 8.89mm -
RS Stock No. 508-113
Mfr. Part No.BZX384-C3V0,115
BrandNexperia
PHP1.618
Each (In a Pack of 200)
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Single 3V Surface Mount 1 300 mW UMD Voltage Regulator 5% 2 5mA 95Ω 10µA 1.8mm -
RS Stock No. 100-7582
Mfr. Part No.1N5349BG
PHP6.862
Each (In a Box of 1000)
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Single 12V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 100mA 2.5Ω 2µA 8.89mm -
RS Stock No. 103-2969
Mfr. Part No.MMSZ5231BT1G
PHP1.711
Each (On a Reel of 3000)
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Single 5.1V Surface Mount 1 500 mW SOD-123 Voltage Regulator 5% 2 20mA 17Ω 5µA 2.69mm -
RS Stock No. 169-8628
Mfr. Part No.1N4728ATR
PHP1.52
Each (On a Reel of 3000)
units
Single 3.3V Through Hole 1 1 W DO-41 General Purpose 5% 2 76mA 10Ω 100µA 5.2mm 2.72mm
RS Stock No. 166-0301
Mfr. Part No.BZX79-C3V0,113
BrandNexperia
PHP0.945
Each (On a Reel of 10000)
units
Single 3V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 5mA 95Ω 10µA 4.25mm -
RS Stock No. 463-278
Mfr. Part No.1N5349BG
PHP8.077
Each (In a Pack of 10)
units
Single 12V Through Hole 1 5 W 017AA-01 Voltage Regulator ±5% 2 100mA 2.5Ω 2µA 8.89mm -
RS Stock No. 438-2671
Mfr. Part No.BZX84-C8V2,215
BrandNexperia
PHP0.744
Each (On a Reel of 3000)
units
Single 8.2V Surface Mount 1 250 mW SOT-23 Voltage Regulator 5% 3 5mA 15Ω 700nA 3mm -
RS Stock No. 464-031
Mfr. Part No.1N5355BG
PHP16.978
Each (In a Pack of 10)
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Single 18V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 65mA 2.5Ω 500nA 8.89mm -
RS Stock No. 145-2657
Mfr. Part No.1N5225B-TR
BrandVishay
PHP1.088
Each (On a Reel of 10000)
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Single 3V Through Hole 1 500 mW DO-35 General Purpose 5% 2 20mA 29Ω 50µA 3.9mm 1.7mm
RS Stock No. 170-8988
Mfr. Part No.MMSZ5245BS-7-F
PHP1.728
Each (On a Reel of 3000)
units
Single 15V Surface Mount 1 200 mW SOD-323 General Purpose 5% 2 9.5mA 600Ω 100nA 1.8mm -
RS Stock No. 544-4540
Mfr. Part No.BZV55-C5V1,115
BrandNexperia
PHP3.90
Each (In a Pack of 10)
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Single 5.1V Surface Mount 1 500 mW MiniMELF Voltage Regulator 5% 2 5mA 60Ω 2µA 3.7mm -
RS Stock No. 169-9125
Mfr. Part No.1N4744A R0
PHP3.346
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. 654-7527
Mfr. Part No.1N5388BRLG
PHP23.63
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. 805-0034
Mfr. Part No.1N4728ATR
PHP3.62
Each (In a Pack of 100)
units
Single 3.3V Through Hole 1 1 W DO-41 General Purpose 5% 2 76mA 10Ω 100µA 5.2mm 2.72mm
RS Stock No. 163-2508
Mfr. Part No.MM3Z5V1T1G
PHP0.856
Each (On a Reel of 3000)
units
Single 5.1V Surface Mount 1 300 mW SOD-323 Voltage Regulator 6% 2 5mA 60Ω 2µA 1.7mm -
RS Stock No. 625-6568
Mfr. Part No.1N5349BRLG
PHP17.90
Each (In a Pack of 10)
units
Single 12V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 100mA 2.5Ω 2µA 8.89mm -
RS Stock No. 544-3525
Mfr. Part No.BZX79-C3V0,113
BrandNexperia
PHP4.799
Each (In a Pack of 20)
units
Single 3V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 5mA 95Ω 10µA 4.25mm -
RS Stock No. 103-7577
Mfr. Part No.BZV55-C5V1,115
BrandNexperia
PHP0.975
Each (On a Reel of 2500)
units
Single 5.1V Surface Mount 1 500 mW MiniMELF Voltage Regulator 5% 2 5mA 60Ω 2µA 3.7mm -
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