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 Length Diameter
RS Stock No. 263-6673
Mfr. Part No.UDZSTE-176.2B
BrandROHM
$0.285
Each (In a Pack of 10)
units
Single 6.2V Surface Mount 1 200 mW SOD-323F Voltage Regulator 2% 2 5mA 60Ω 1µA 1.7mm -
RS Stock No. 774-3313
Mfr. Part No.1N5378BG
$0.481
Each (In a Pack of 10)
units
Single 100V Through Hole 1 5 W Surmetic 40 Voltage Regulator 5% 2 12mA 800Ω 500nA 8.89mm 3.68mm
RS Stock No. 476-0188
Mfr. Part No.UDZSTE-17 6.2B
BrandROHM
$0.103
Each (In a Pack of 100)
units
Single 6.2V Surface Mount 1 200 mW SOD-323F Voltage Regulator 2% 2 5mA 60Ω 1µA 1.7mm -
RS Stock No. 463-791
Mfr. Part No.1N5339BG
$0.50
Each (In a Pack of 10)
units
Single 5.6V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 220mA 1µA 8.89mm -
RS Stock No. 654-7549
Mfr. Part No.1N5339BRLG
$0.646
Each (In a Pack of 5)
units
Single 5.6V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 220mA 1µA 8.89mm -
RS Stock No. 102-1393
Mfr. Part No.1N5339BG
$0.204
Each (In a Box of 1000)
units
Single 5.6V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 220mA 1µA 8.89mm -
RS Stock No. 103-3913
Mfr. Part No.1N5339BRLG
$0.17
Each (On a Reel of 4000)
units
Single 5.6V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 220mA 1µA 8.89mm -
RS Stock No. 818-5099
Mfr. Part No.TZX5V1B-TR
BrandVishay
$0.106
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. 145-2285
Mfr. Part No.TZX5V1B-TR
BrandVishay
$0.034
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. 476-0295
Mfr. Part No.UDZSTE-17 16B
BrandROHM
$0.108
Each (In a Pack of 100)
units
Single 16V Surface Mount 1 200 mW SOD-323F Voltage Regulator 2% 2 5mA 50Ω 100nA 1.7mm -
RS Stock No. 401-2388
Mfr. Part No.AW01-11
BrandHitachi
$0.95
Each (In a Pack of 5)
units
Single 11V Through Hole 1 1 W - - 5% 2 25mA - 5mm -
RS Stock No. 145-2655
Mfr. Part No.1N5221B-TR
BrandVishay
$0.033
Each (On a Reel of 10000)
units
Single 2.4V Through Hole 1 500 mW DO-35 General Purpose 5% 2 20mA 30Ω 100µA 3.9mm 1.7mm
RS Stock No. 811-5933
Mfr. Part No.1N5221B-TR
BrandVishay
$0.071
Each (In a Pack of 50)
units
Single 2.4V Through Hole 1 500 mW DO-35 General Purpose 5% 2 20mA 30Ω 100µA 3.9mm 1.7mm
RS Stock No. 792-5307
Mfr. Part No.1N5337BRLG
$0.52
Each (In a Pack of 20)
units
Single 4.7V Through Hole 1 5 W - Voltage Regulator 5% 2 260mA 5µA 8.89mm 3.68mm
RS Stock No. 169-9300
Mfr. Part No.BZX55C10 R0
$0.028
Each (On a Tape of 10000)
units
Single 10V Through Hole 1 500 mW DO-35 Voltage Regulator 6% 2 5mA 15Ω 100nA 3.7mm 2.1mm
RS Stock No. 170-3537
Mfr. Part No.1N5337BRLG
$0.183
Each (On a Reel of 4000)
units
Single 4.7V Through Hole 1 5 W - Voltage Regulator 5% 2 260mA 5µA 8.89mm 3.68mm
RS Stock No. 625-6552
Mfr. Part No.1N5337BG
$0.492
Each (In a Pack of 10)
units
Single 4.7V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 260mA 5µA 8.89mm -
RS Stock No. 812-471
Mfr. Part No.BZX85C11V
BrandMagnatec
$0.668
Each (In a Pack of 5)
units
Single 11V Through Hole 1 1.3 W DO-41 Voltage Regulator 5% 2 20mA 300Ω 500nA 4.1mm 2.5mm
RS Stock No. 103-3902
Mfr. Part No.1N5337BG
$0.202
Each (In a Box of 1000)
units
Single 4.7V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 260mA 5µA 8.89mm -
RS Stock No. 748-5045
Mfr. Part No.BZX55C10 R0
$0.048
Each (In a Pack of 200)
units
Single 10V Through Hole 1 500 mW DO-35 Voltage Regulator 6% 2 5mA 15Ω 100nA 3.7mm 2.1mm
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