Zener Diodes

Zener diodes are a type of semiconductor device that has different characteristics from a normal diode. Zener diodes allow current to flow from its anode to its cathode in either a forward or reverse direction, but only when exposed to enough voltage.

How does a Zener diode work?

Zener diodes are designed to change the direction of the 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 changes the direction of flow is called Zener Voltage or Breakdown Voltage. It could be defined for specific diodes anywhere from 1.8 to 200 V.

Types of Zener diodes

Zener diodes are offered in an array of different configurations such as different levels of power dissipation, mount types, and different configurations.

There are also different types of Zener diodes such as:

  • Avalanche
  • Bi-Directional
  • ESD Protection
  • General Purpose
  • Ultra-small

Typical applications 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. Zener diodes work reliably in the breakdown region, unlike normal diodes which would overheat. They are the most common and handiest solutions to a number of needs in a circuit design.


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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. 802-4666
Mfr. Part No.MM5Z15VT1G
TWD2.00
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. 145-3193
Mfr. Part No.MM5Z15VT1G
TWD1.10
Each (On a Reel of 3000)
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. 670-8867
Mfr. Part No.BZX85C15
TWD5.90
Each (In a Pack of 20)
units
Single 15V Through Hole 1 1 W DO-41 - 5% 2 15mA 15Ω 500nA 5.21 x 2.72 x 2.72mm -
RS Stock No. 463-280
Mfr. Part No.1N5352BG
TWD11.60
Each (In a Pack of 10)
units
Single 15V Through Hole 1 5 W 017AA-01 Voltage Regulator ±5% 2 75mA 2.5Ω 1µA 8.89 x 3.68 x 3.68mm -
RS Stock No. 800-8844
Mfr. Part No.1N5937BRLG
TWD10.00
Each (In a Pack of 50)
units
Single 33V Through Hole 1 3 W Case 59-10 Voltage Regulator 5% 2 11.4mA 33 Ω, 800Ω 250nA 2.7 (Dia.) x 5.2mm -
RS Stock No. 808-0177
Mfr. Part No.MMSZ4683T1G
TWD2.20
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. 186-9308
Mfr. Part No.1N5366BG
TWD12.80
Each (In a Pack of 25)
units
Single 39V Through Hole 1 5 W CASE 017AA Voltage Regulator ±5% 2 30mA 170Ω 500nA 3.68 (Dia.) x 8.89mm -
RS Stock No. 792-5319
Mfr. Part No.1N5352BRLG
TWD11.00
Each (In a Pack of 20)
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. 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. 802-1869
Mfr. Part No.MMSZ4707T1G
TWD2.00
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 -
RS Stock No. 169-8526
Mfr. Part No.BZX85C15
TWD1.60
Each (In a Bag of 1000)
units
Single 15V Through Hole 1 1 W DO-41 - 5% 2 15mA 15Ω 500nA 5.21 x 2.72 x 2.72mm -
RS Stock No. 163-0638
Mfr. Part No.MMSZ4683T1G
TWD1.10
Each (On a Reel of 3000)
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. 186-8764
Mfr. Part No.1N5366BG
TWD4.70
Each (In a Box of 1000)
units
Single 39V Through Hole 1 5 W CASE 017AA Voltage Regulator ±5% 2 30mA 170Ω 500nA 3.68 (Dia.) x 8.89mm -
RS Stock No. 100-7583
Mfr. Part No.1N5352BG
TWD4.30
Each (In a Box of 1000)
units
Single 15V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 75mA 2.5Ω 1µA 8.89 x 3.68 x 3.68mm -
RS Stock No. 145-5212
Mfr. Part No.MMSZ4707T1G
TWD1.10
Each (On a Reel of 3000)
units
Single 20V Surface Mount 1 500 mW SOD-123 Voltage Regulator - 2 0.05mA - 10nA 2.84 x 1.8 x 1.25mm -
RS Stock No. 121-6442
Mfr. Part No.1N5352BRLG
TWD4.10
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. 145-5162
Mfr. Part No.1N5937BRLG
TWD2.80
Each (On a Reel of 6000)
units
Single 33V Through Hole 1 3 W Case 59-10 Voltage Regulator 5% 2 11.4mA 33 Ω, 800Ω 250nA 2.7 (Dia.) x 5.2mm -
RS Stock No. 145-3187
Mfr. Part No.MM3Z20VT1G
TWD0.80
Each (On a Reel of 3000)
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. 802-4578
Mfr. Part No.MM3Z20VT1G
TWD1.60
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. 103-3915
Mfr. Part No.1N5344BRLG
TWD4.10
Each (On a Reel of 4000)
units
Single 8.2V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 150mA 1.5Ω 10µA 8.89 x 3.68 x 3.68mm -