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.
You are viewing 1 - 20 of 5717 results
Display:
Results per page
20
  • 20
  • 50
  • 100
Price
(Price shown excludes VAT)
Part Details Brand Nominal Zener Voltage Diode Configuration Number of Elements per Chip Mounting Type Maximum Power Dissipation Package Type Zener Type Zener Voltage Tolerance Pin Count Test Current Maximum Zener Impedance Maximum Reverse Leakage Current Length Diameter Dimensions Typical Voltage Temperature Coefficient Height Width Power Dissipation Forward Current Maximum Operating Temperature Forward Voltage Minimum Operating Temperature
11V Zener Diode ±5% 300 mW SMT 3-Pin SOT-23
  • £ 0.016
  • Each (On a Reel of 3000)
  • Check Stock Levels
  • Compare
ON Semiconductor 11V Single 1 Surface Mount 300 mW SOT-23 Voltage Regulator ±5% 3 5mA 20Ω 100nA 3.04mm - 3.04 x 1.4 x 1.01mm 9mV/K 1.01mm 1.4mm 250mW 10mA +150 °C 0.9V -65 °C
11V Zener Diode ±5% 300 mW SMT 3-Pin SOT-23 ON Semiconductor 11V Single 1 Surface Mount 300 mW SOT-23 Voltage Regulator ±5% 3 5mA 20Ω 100nA 3.04mm - 3.04 x 1.4 x 1.01mm 9mV/K 1.01mm 1.4mm 250mW 10mA +150 °C 0.9V -65 °C
12V Zener Diode 5% 500 mW Through Hole 2-Pin DO-35 ON Semiconductor 12V Single 1 Through Hole 500 mW DO-35 General Purpose 5% 2 20mA 30 Ω @ 20 mA, 600 Ω @ 0.25 mA 1µA - 1.91mm 1.91 Dia. x 4.56mm 0.07%/°C 4.56mm - 500mW 200mA +200 °C 1.2V -65 °C
12V Zener Diode 5% 500 mW Through Hole 2-Pin DO-35 ON Semiconductor 12V Single 1 Through Hole 500 mW DO-35 General Purpose 5% 2 20mA 30 Ω @ 20 mA, 600 Ω @ 0.25 mA 1µA - 1.91mm 1.91 Dia. x 4.56mm 0.07%/°C 4.56mm - 500mW 200mA +200 °C 1.2V -65 °C
15V Zener Diode 5% 500 mW Through Hole 2-Pin DO-35 ON Semiconductor 15V Single 1 Through Hole 500 mW DO-35 General Purpose 5% 2 8.5mA 16 Ω @ 8.5 mA, 600 Ω @ 0.25 mA 100nA - 1.91mm 1.91 Dia. x 4.56mm 0.08%/°C 4.56mm - 500mW 200mA +200 °C 1.2V -65 °C
15V Zener Diode 5% 500 mW Through Hole 2-Pin DO-35 ON Semiconductor 15V Single 1 Through Hole 500 mW DO-35 General Purpose 5% 2 8.5mA 16 Ω @ 8.5 mA, 600 Ω @ 0.25 mA 100nA - 1.91mm 1.91 Dia. x 4.56mm 0.08%/°C 4.56mm - 500mW 200mA +200 °C 1.2V -65 °C
16V Zener Diode ±5% 300 mW SMT 3-Pin SOT-23
  • £ 0.016
  • Each (On a Reel of 3000)
  • Check Stock Levels
  • Compare
ON Semiconductor 16V Single 1 Surface Mount 300 mW SOT-23 Voltage Regulator ±5% 3 5mA 40Ω 50nA 3.04mm - 3.04 x 1.4 x 1.01mm 14mV/K 1.01mm 1.4mm 250mW 10mA +150 °C 0.9V -65 °C
16V Zener Diode ±5% 300 mW SMT 3-Pin SOT-23 ON Semiconductor 16V Single 1 Surface Mount 300 mW SOT-23 Voltage Regulator ±5% 3 5mA 40Ω 50nA 3.04mm - 3.04 x 1.4 x 1.01mm 14mV/K 1.01mm 1.4mm 250mW 10mA +150 °C 0.9V -65 °C
18V Zener Diode ±5% 300 mW SMT 3-Pin SOT-23
  • £ 0.016
  • Each (On a Reel of 3000)
  • Check Stock Levels
  • Compare
ON Semiconductor 18V Single 1 Surface Mount 300 mW SOT-23 Voltage Regulator ±5% 3 5mA 45Ω 50nA 3.04mm - 3.04 x 1.4 x 1.01mm 16mV/K 1.01mm 1.4mm 250mW 10mA +150 °C 0.9V -65 °C
18V Zener Diode ±5% 300 mW SMT 3-Pin SOT-23 ON Semiconductor 18V Single 1 Surface Mount 300 mW SOT-23 Voltage Regulator ±5% 3 5mA 45Ω 50nA 3.04mm - 3.04 x 1.4 x 1.01mm 16mV/K 1.01mm 1.4mm 250mW 10mA +150 °C 0.9V -65 °C
2.5V Zener Diode 5% 500 mW Through Hole 2-Pin DO-35 ON Semiconductor 2.5V Single 1 Through Hole 500 mW DO-35 General Purpose 5% 2 20mA 1250 Ω @ 0.25 mA, 30 Ω @ 20 mA 100µA - 1.91mm 1.91 Dia. x 4.56mm -0.08%/°C 4.56mm - 500mW 200mA +200 °C 1.2V -65 °C
2.5V Zener Diode 5% 500 mW Through Hole 2-Pin DO-35 ON Semiconductor 2.5V Single 1 Through Hole 500 mW DO-35 General Purpose 5% 2 20mA 1250 Ω @ 0.25 mA, 30 Ω @ 20 mA 100µA - 1.91mm 1.91 Dia. x 4.56mm -0.08%/°C 4.56mm - 500mW 200mA +200 °C 1.2V -65 °C
2.7V Zener Diode 5% 500 mW Through Hole 2-Pin DO-35 ON Semiconductor 2.7V Single 1 Through Hole 500 mW DO-35 General Purpose 5% 2 20mA 1300 Ω @ 0.25 mA, 30 Ω @ 20 mA 75µA - 1.91mm 1.91 Dia. x 4.56mm -0.08%/°C 4.56mm - 500mW 200mA +200 °C 1.2V -65 °C
2.7V Zener Diode 5% 500 mW Through Hole 2-Pin DO-35 ON Semiconductor 2.7V Single 1 Through Hole 500 mW DO-35 General Purpose 5% 2 20mA 1300 Ω @ 0.25 mA, 30 Ω @ 20 mA 75µA - 1.91mm 1.91 Dia. x 4.56mm -0.08%/°C 4.56mm - 500mW 200mA +200 °C 1.2V -65 °C
2.7V Zener Diode ±5% 300 mW SMT 3-Pin SOT-23
  • £ 0.016
  • Each (On a Reel of 3000)
  • Check Stock Levels
  • Compare
ON Semiconductor 2.7V Single 1 Surface Mount 300 mW SOT-23 Voltage Regulator ±5% 3 5mA 100Ω 20µA 3.04mm - 3.04 x 1.4 x 1.01mm -3.5 → 0mV/K 1.01mm 1.4mm 250mW 10mA +150 °C 0.9V -65 °C
2.7V Zener Diode ±5% 300 mW SMT 3-Pin SOT-23 ON Semiconductor 2.7V Single 1 Surface Mount 300 mW SOT-23 Voltage Regulator ±5% 3 5mA 100Ω 20µA 3.04mm - 3.04 x 1.4 x 1.01mm -3.5 → 0mV/K 1.01mm 1.4mm 250mW 10mA +150 °C 0.9V -65 °C
20V Zener Diode 5% 1 W Through Hole 2-Pin DO-41 ON Semiconductor 20V Single 1 Through Hole 1 W DO-41 General Purpose 5% 2 12.5mA 22Ω 5µA - 2.72mm 2.72 Dia. x 5.2mm - 2.72mm - 1W - +200 °C - -65 °C
20V Zener Diode 5% 1 W Through Hole 2-Pin DO-41 ON Semiconductor 20V Single 1 Through Hole 1 W DO-41 General Purpose 5% 2 12.5mA 22Ω 5µA - 2.72mm 2.72 Dia. x 5.2mm - 2.72mm - 1W - +200 °C - -65 °C
22V Zener Diode ±5% 5 W Through Hole 2-Pin CASE 017AA ON Semiconductor 22V Single 1 Through Hole 5 W Case 017AA Voltage Regulator ±5% 2 - 3.5Ω 500nA - 3.68mm 3.68 Dia. x 8.89mm - 8.89mm - 5W 1A +200 °C 1.2V -65 °C
22V Zener Diode ±5% 5 W Through Hole 2-Pin CASE 017AA ON Semiconductor 22V Single 1 Through Hole 5 W Case 017AA Voltage Regulator ±5% 2 - 3.5Ω 500nA - 3.68mm 3.68 Dia. x 8.89mm - 8.89mm - 5W 1A +200 °C 1.2V -65 °C
Check Our Stock Volumes
Enter the quantity you require and click 'Check'.
. This information is updated daily so availability may vary at time of order placement.
RS Stock No:
I'm looking for 
Compare list full
You can only compare 8 products at a time

View or remove your products on your Compare page
You are viewing 1 - 20 of 5717 results