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.

5601 Products showing for Zener Diodes

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In Stock
onsemi 1, 3 V Zener Diode, Single 500 mW 5 % Through Hole 2-Pin SOD-27
  • RS Stock No. 184-4989
  • Mfr. Part No. 1N5225B
Subtotal (250 units, in packs of 250)
PHP796.50(exc. VAT)
PHP3.186/unit
Temporarily out of stock
onsemi 1, 5.1 V Zener Diode, Single 1 W Through Hole 2-Pin DO-41
  • RS Stock No. 838-611
  • Mfr. Part No. 1N4733A
Subtotal (100 units, in bags of 100)
PHP450.90(exc. VAT)
PHP4.509/unit
In Stock
onsemi 1, 3.3 V Zener Diode, Single 500 mW 5 % Surface 2-Pin SOD-123
  • RS Stock No. 687-8250
  • Mfr. Part No. MMSZ4684T1G
Subtotal (25 units, in packs of 25)
PHP92.35(exc. VAT)
PHP3.694/unit
Currently unavailable
Vishay 1, 18 V Zener Diode, Single 500 mW 5 % Surface 2-Pin MiniMELF
  • RS Stock No. 699-7896
  • Mfr. Part No. TZMC18-GS08
Subtotal (250 units, in packs of 250)
PHP731.75(exc. VAT)
PHP2.927/unit
In Stock
Nexperia 1, 12 V Zener Diode, Single 500 mW 2 % Through Hole 2-Pin SOD-27
  • RS Stock No. 508-163
  • Mfr. Part No. BZX79-B12,113
Subtotal (100 units, in packs of 100)
PHP424.70(exc. VAT)
PHP4.247/unit
Temporarily out of stock
DiodesZetex 1, 12 V Zener Diode, Single 350 mW 5 % Surface 3-Pin SOT-23
  • RS Stock No. 146-0922
  • Mfr. Part No. MMBZ5242B-7-F
Subtotal (3000 units, on reels of 3000)
PHP4,560.00(exc. VAT)
PHP1.52/unit
Temporarily out of stock
ROHM 1, 13 V Zener Diode, Single 250 mW Surface 3-Pin SOT-23
  • RS Stock No. 222-4232
  • Mfr. Part No. BZX84C13VLYFHT116
Subtotal (3000 units, on reels of 3000)
PHP14,280.00(exc. VAT)
PHP4.76/unit
Limited stock
Nexperia 1, 5 V Zener Diode, Single 250 mW 4 % Surface 3-Pin SOT-23
  • RS Stock No. 484-3514
  • Mfr. Part No. PLVA650A,215
Subtotal (10 units, in packs of 10)
PHP171.67(exc. VAT)
PHP17.167/unit
In Stock
Vishay 1, 3.6 V Zener Diode, Single 500 mW 3 % Through Hole 2-Pin DO-35
  • RS Stock No. 159-6582
  • Mfr. Part No. TZX3V6B-TR
Subtotal (10000 units, on reels of 10000)
PHP46,560.00(exc. VAT)
PHP4.656/unit
In Stock
Vishay 1, 5.6 V Zener Diode, Single 1.3 W 7 % Through Hole 2-Pin DO-41
  • RS Stock No. 699-7846P
  • Mfr. Part No. BZX85C5V6-TAP
Subtotal (100 units, supplied as a tape)
PHP931.10(exc. VAT)
PHP9.311/unit
In Stock
Vishay 1, 20 V Zener Diode, Single 1.3 W 6 % Through Hole 2-Pin DO-41
  • RS Stock No. 145-2217
  • Mfr. Part No. BZX85C20-TAP
Subtotal (5000 units, on reels of 5000)
PHP41,675.00(exc. VAT)
PHP8.335/unit
In Stock
Vishay 1, 6.8 V Zener Diode, Single 1.3 W 6 % Through Hole 2-Pin DO-41
  • RS Stock No. 812-8796P
  • Mfr. Part No. BZX85C6V8-TR
Subtotal (200 units, supplied on a reel)
PHP1,776.20(exc. VAT)
PHP8.881/unit
In Stock
Nexperia 1, 62 V Zener Diode, Single 1.3 W 5 % Through Hole 2-Pin DO-41
  • RS Stock No. 507-885
  • Mfr. Part No. BZV85-C62,113
Subtotal (100 units, in packs of 100)
PHP544.70(exc. VAT)
PHP5.447/unit
In Stock
onsemi 1, 22 V Zener Diode, Single 5 W 5 % Through Hole 2-Pin DO-15
  • RS Stock No. 186-8757
  • Mfr. Part No. 1N5358BRLG
Subtotal (4000 units, on reels of 4000)
PHP42,940.00(exc. VAT)
PHP10.735/unit
In Stock
Vishay 1, 3.3 V Zener Diode, Single 1.3 W 6 % Through Hole 2-Pin DO-41
  • RS Stock No. 708-7922
  • Mfr. Part No. BZX85C3V3-TAP
Subtotal (100 units, in packs of 100)
PHP894.20(exc. VAT)
PHP8.942/unit
In Stock
onsemi 1, 24 V Zener Diode, Single 1 W 5 % Through Hole 2-Pin DO-41
  • RS Stock No. 805-0090
  • Mfr. Part No. 1N4749ATR
Subtotal (100 units, in packs of 100)
PHP646.30(exc. VAT)
PHP6.463/unit
In Stock
onsemi 1, 18 V Zener Diode, Single 1 W 5 % Through Hole 2-Pin DO-41
  • RS Stock No. 917-5443
  • Mfr. Part No. 1N4746A
Subtotal (100 units, in packs of 100)
PHP624.10(exc. VAT)
PHP6.241/unit
In Stock
onsemi 1, 20 V Zener Diode, Single 5 W 5 % Through Hole 2-Pin DO-15
  • RS Stock No. 124-9922
  • Mfr. Part No. 1N5357BRLG
Subtotal (4000 units, on reels of 4000)
PHP45,884.00(exc. VAT)
PHP11.471/unit
In Stock
onsemi 1, 6.2 V Zener Diode, Single 1 W 5 % Through Hole 2-Pin DO-41
  • RS Stock No. 184-4699
  • Mfr. Part No. 1N4735A
Subtotal (100 units, in packs of 100)
PHP607.00(exc. VAT)
PHP6.07/unit
In Stock
onsemi 1, 10 V Zener Diode, Single 5 W 5 % Through Hole 2-Pin DO-15
  • RS Stock No. 103-3917
  • Mfr. Part No. 1N5347BRLG
Subtotal (4000 units, on reels of 4000)
PHP43,776.00(exc. VAT)
PHP10.944/unit
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