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. 145-2659
Mfr. Part No.1N5227B-TR
BrandVishay
TWD1.00
Each (On a Reel of 10000)
units
Single 3.6V Through Hole 1 500 mW DO-35 General Purpose 5% 2 20mA 24Ω 15µA 1.7 (Dia.) x 3.9mm -
RS Stock No. 903-0732
Mfr. Part No.BZT52B5V1-E3-08
BrandVishay
TWD3.50
Each (On a Reel of 250)
units
Single 5.1V Surface Mount 1 500 mW SOD-123 General Purpose 2% 2 1 mA, 5 mA 30Ω 100nA 2.85 x 1.7 x 1.35mm -
RS Stock No. 802-4666
Mfr. Part No.MM5Z15VT1G
TWD1.90
Each (On a Tape of 200)
units
Single 15V Surface Mount 1 500 mW SOD-523 Voltage Regulator 5% 2 5mA 30Ω 50nA 1.3 x 0.9 x 0.7mm -
RS Stock No. 165-8705
Mfr. Part No.BZX384-B7V5
BrandNexperia
TWD0.80
Each (On a Reel of 3000)
units
Single 7.5V Surface Mount 1 300 mW SOD-323 Voltage Regulator 2% 2 5mA 15Ω 1µA 1.8 x 1.35 x 1.05mm -
RS Stock No. 816-7921
Mfr. Part No.BZX384-B7V5
BrandNexperia
TWD1.30
Each (In a Pack of 200)
units
Single 7.5V Surface Mount 1 300 mW SOD-323 Voltage Regulator 2% 2 5mA 15Ω 1µA 1.8 x 1.35 x 1.05mm -
RS Stock No. 145-2305
Mfr. Part No.TZS4678-GS08
BrandVishay
TWD1.40
Each (On a Reel of 2500)
units
Single 1.8V Surface Mount 1 500 mW SOD-80 Voltage Regulator 5% 2 0.05mA - 7.5µA 3.7 x 1.6 x 1.6mm -
RS Stock No. 708-7899
Mfr. Part No.BZX55C8V2-TAP
BrandVishay
TWD2.40
Each (In a Pack of 250)
units
Single 8.2V Through Hole 1 500 mW DO-35 Voltage Regulator 6% 2 5mA 100nA 3.9 x 1.7 x 1.7mm -
RS Stock No. 122-1462
Mfr. Part No.DDZ16CSF-7
TWD0.90
Each (On a Reel of 3000)
units
Single 16V Surface Mount 1 500 mW SOD-323F Voltage Regulator 2.5% 2 10mA 40Ω 70nA 1.8 x 1.35 x 0.75mm -
RS Stock No. 770-4885
Mfr. Part No.DDZ16CSF-7
TWD1.70
Each (On a Tape of 100)
units
Single 16V Surface Mount 1 500 mW SOD-323F Voltage Regulator 2.5% 2 10mA 40Ω 70nA 1.8 x 1.35 x 0.75mm -
RS Stock No. 751-3711
Mfr. Part No.BZT52C2V0-7-F
TWD2.50
Each (On a Tape of 250)
units
Single 2V Surface Mount 1 500 mW SOD-123 Voltage Regulator 5% 2 5mA 100Ω 150µA 2.85 x 1.7 x 1.35mm -
RS Stock No. 751-3714
Mfr. Part No.BZT52C2V0S-7-F
TWD2.90
Each (In a Pack of 100)
units
Single 2V Surface Mount 1 200 mW SOD-323 Voltage Regulator 5% 2 5mA 100Ω 150µA 1.8 x 1.4 x 1.1mm -
RS Stock No. 121-6442
Mfr. Part No.1N5352BRLG
TWD4.00
Each (On a Reel of 4000)
units
Single 15V Through Hole 1 5 W - Voltage Regulator 5% 2 75mA 2.5Ω 1µA 3.68 (Dia.) x 8.89mm -
RS Stock No. 103-7547
Mfr. Part No.PLVA650A,215
BrandNexperia
TWD2.40
Each (On a Reel of 3000)
units
Single 5V Surface Mount 1 250 mW SOT-23 (TO-236AB) Avalanche 4% 3 0.25mA 700Ω 20µA 3 x 1.4 x 1mm -
RS Stock No. 812-8519
Mfr. Part No.BZX55B13-TR
BrandVishay
TWD2.90
Each (In a Pack of 250)
units
Single 13V Through Hole 1 500 mW DO-35 Voltage Regulator 2% 2 5mA 26Ω 2µA 1.7 (Dia.) x 3.9mm -
RS Stock No. 816-6713
Mfr. Part No.PDZ3.9B,115
BrandNexperia
TWD2.00
Each (In a Pack of 200)
units
Single 3.9V Surface Mount 1 400 mW SOD-323 Voltage Regulator 2% 2 5mA - 3µA 1.8 x 1.35 x 1.05mm -
RS Stock No. 121-9533
Mfr. Part No.BZT52C2V0S-7-F
TWD1.40
Each (On a Reel of 3000)
units
Single 2V Surface Mount 1 200 mW SOD-323 Voltage Regulator 5% 2 5mA 100Ω 150µA 1.8 x 1.4 x 1.1mm -
RS Stock No. 802-4578
Mfr. Part No.MM3Z20VT1G
TWD1.40
Each (On a Tape of 200)
units
Single 20V Surface Mount 1 300 mW SOD-323 Voltage Regulator 5% 2 5mA 55Ω 50nA 1.8 x 1.35 x 1mm -
RS Stock No. 654-7662
Mfr. Part No.1N5366BRLG
TWD15.00
Each (In a Pack of 5)
units
Single 39V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 30mA 14Ω 500nA 8.89 x 3.68 x 3.68mm -
RS Stock No. 808-0177
Mfr. Part No.MMSZ4683T1G
TWD2.10
Each (On a Tape of 500)
units
Single 3V Surface Mount 1 500 mW SOD-123 Voltage Regulator - 2 0.05mA - 800nA 2.84 x 1.8 x 1.25mm -
RS Stock No. 802-1869
Mfr. Part No.MMSZ4707T1G
TWD1.90
Each (On a Tape of 200)
units
Single 20V Surface Mount 1 500 mW SOD-123 Voltage Regulator - 2 0.05mA - 10nA 2.84 x 1.8 x 1.25mm -