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.
Zener Diodes
4640
Filters
| 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 | |
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RS Stock No.
544-4449
Mfr. Part No.BZX79-C8V2,113
BrandNexperia
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£0.086
Each (In a Pack of 20)
Units
|
Single | 8.2V | Through Hole | 1 | 500 mW | DO-35 | Voltage Regulator | 5% | 2 | 5mA | 15Ω | 700nA | 4.25mm | - |
|
RS Stock No.
166-1240
Mfr. Part No.BZV85-C10,113
BrandNexperia
|
£0.033
Each (On a Reel of 5000)
Units
|
Single | 10V | Through Hole | 1 | 1.3 W | DO-41 | Voltage Regulator | 5% | 2 | 25mA | 8Ω | 200nA | 4.8mm | - |
|
RS Stock No.
145-3099
Mfr. Part No.MMSZ5222BT1G
BrandON Semiconductor
|
£0.023
Each (On a Reel of 3000)
Units
|
Single | 2.5V | Surface Mount | 1 | 500 mW | SOD-123 | Voltage Regulator | 5% | 2 | 20mA | 30Ω | 100µA | 2.69mm | - |
|
RS Stock No.
670-8867
Mfr. Part No.BZX85C15
BrandON Semiconductor
|
£0.132
Each (In a Pack of 20)
Units
|
Single | 15V | Through Hole | 1 | 1 W | DO-41 | - | 5% | 2 | 15mA | 15Ω | 500nA | 5.21mm | - |
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RS Stock No.
169-8526
Mfr. Part No.BZX85C15
BrandON Semiconductor
|
£0.034
Each (In a Bag of 1000)
Units
|
Single | 15V | Through Hole | 1 | 1 W | DO-41 | - | 5% | 2 | 15mA | 15Ω | 500nA | 5.21mm | - |
|
RS Stock No.
177-7446
Mfr. Part No.TZX4V7A-TR
BrandVishay
|
£0.012
Each (On a Reel of 10000)
Units
|
Single | 4.5V | Through Hole | 1 | 500 mW | DO-35 | Voltage Regulator | 2% | 2 | 5mA | 100Ω | 5µA | 3.9mm | 1.7mm |
|
RS Stock No.
818-5099
Mfr. Part No.TZX5V1B-TR
BrandVishay
|
£0.054
Each (In a Pack of 200)
Units
|
Single | 5V | Through Hole | 1 | 500 mW | DO-35 | Voltage Regulator | 2% | 2 | 5mA | 100Ω | 5µA | 3.9mm | 1.7mm |
|
RS Stock No.
436-8186
Mfr. Part No.BZX84-C15,215
BrandNexperia
|
£0.103
Each (In a Pack of 50)
Units
|
Single | 15V | Surface Mount | 1 | 250 mW | SOT-23 | Voltage Regulator | 5% | 3 | 5mA | 30Ω | 50nA | 3mm | - |
|
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RS Stock No.
145-2285
Mfr. Part No.TZX5V1B-TR
BrandVishay
|
£0.019
Each (On a Reel of 10000)
Units
|
Single | 5V | Through Hole | 1 | 500 mW | DO-35 | Voltage Regulator | 2% | 2 | 5mA | 100Ω | 5µA | 3.9mm | 1.7mm |
|
|
RS Stock No.
178-7145
Mfr. Part No.BZX84-C15,215
BrandNexperia
|
£0.014
Each (On a Reel of 3000)
Units
|
Single | 15V | Surface Mount | 1 | 250 mW | SOT-23 | Voltage Regulator | 5% | 3 | 5mA | 30Ω | 50nA | 3mm | - |
|
RS Stock No.
464-031
Mfr. Part No.1N5355BG
BrandON Semiconductor
|
£0.247
Each (In a Pack of 10)
Units
|
Single | 18V | Through Hole | 1 | 5 W | DO-15 | Voltage Regulator | 5% | 2 | 65mA | 2.5Ω | 500nA | 8.89mm | - |
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RS Stock No.
813-3912
Mfr. Part No.ZPY20-TR
BrandVishay
|
£0.095
Each (In a Pack of 100)
Units
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Single | 20V | Through Hole | 1 | 1.3 W | DO-41 | General Purpose | 5% | 2 | 25mA | 12Ω | 500nA | 5.2mm | 2.6mm |
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RS Stock No.
145-2259
Mfr. Part No.ZPY20-TR
BrandVishay
|
£0.043
Each (On a Reel of 5000)
Units
|
Single | 20V | Through Hole | 1 | 1.3 W | DO-41 | General Purpose | 5% | 2 | 25mA | 12Ω | 500nA | 5.2mm | 2.6mm |
|
|
RS Stock No.
102-2267
Mfr. Part No.1N5355BG
BrandON Semiconductor
|
£0.097
Each (In a Box of 1000)
Units
|
Single | 18V | Through Hole | 1 | 5 W | DO-15 | Voltage Regulator | 5% | 2 | 65mA | 2.5Ω | 500nA | 8.89mm | - |
|
RS Stock No.
170-3467
Mfr. Part No.1N5346BG
BrandON Semiconductor
|
£0.097
Each (In a Bag of 1000)
Units
|
Single | 9.1V | Through Hole | 1 | 5 W | Surmetic 40 | Voltage Regulator | 5% | 2 | 150mA | 150Ω | 7.5µA | 8.89mm | 3.68mm |
|
RS Stock No.
654-7577
Mfr. Part No.1N5346BRLG
BrandON Semiconductor
|
£0.35
Each (In a Pack of 5)
Units
|
Single | 9.1V | Through Hole | 1 | 5 W | DO-15 | Voltage Regulator | 5% | 2 | 150mA | 2Ω | 7.5µA | 8.89mm | - |
|
|
RS Stock No.
774-3284
Mfr. Part No.1N5346BG
BrandON Semiconductor
|
£0.247
Each (In a Pack of 10)
Units
|
Single | 9.1V | Through Hole | 1 | 5 W | Surmetic 40 | Voltage Regulator | 5% | 2 | 150mA | 150Ω | 7.5µA | 8.89mm | 3.68mm |
|
RS Stock No.
508-056
Mfr. Part No.BZX384-C12,115
BrandNexperia
|
£0.054
Each (In a Pack of 200)
Units
|
Single | 12V | Surface Mount | 1 | 300 mW | UMD | Voltage Regulator | 5% | 2 | 5mA | 25Ω | 100nA | 1.8mm | - |
|
RS Stock No.
103-3912
Mfr. Part No.1N5335BRLG
BrandON Semiconductor
|
£0.093
Each (On a Reel of 4000)
Units
|
Single | 3.9V | Through Hole | 1 | 5 W | DO-15 | Voltage Regulator | 5% | 2 | 320mA | 2Ω | 50µA | 8.89mm | - |
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RS Stock No.
166-1330
Mfr. Part No.BZX384-C12,115
BrandNexperia
|
£0.02
Each (On a Reel of 3000)
Units
|
Single | 12V | Surface Mount | 1 | 300 mW | UMD | Voltage Regulator | 5% | 2 | 5mA | 25Ω | 100nA | 1.8mm | - |
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