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 Width
RS Stock No. 625-6568
Mfr. Part No.1N5349BRLG
$0.547
Each (In a Pack of 10)
units
Single 12V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 100mA 2.5Ω 2µA 8.89mm 3.68mm
RS Stock No. 100-7582
Mfr. Part No.1N5349BG
$0.20
Each (In a Box of 1000)
units
Single 12V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 100mA 2.5Ω 2µA 8.89mm 3.68mm
RS Stock No. 103-3903
Mfr. Part No.1N5349BRLG
$0.204
Each (On a Reel of 4000)
units
Single 12V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 100mA 2.5Ω 2µA 8.89mm 3.68mm
RS Stock No. 463-278
Mfr. Part No.1N5349BG
$0.547
Each (In a Pack of 10)
units
Single 12V Through Hole 1 5 W 017AA-01 Voltage Regulator ±5% 2 100mA 2.5Ω 2µA 8.89mm 3.68mm
RS Stock No. 476-8441
Mfr. Part No.UDZSTE-17 33B
BrandROHM
$0.123
Each (In a Pack of 100)
units
Single 33V Surface Mount 1 200 mW SOD-323F Voltage Regulator 2% 2 5mA 250Ω 100nA 1.7mm 1.25mm
RS Stock No. 100-7581
Mfr. Part No.1N5338BG
$0.20
Each (In a Box of 1000)
units
Single 5.1V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 240mA 1.5Ω 1µA 8.89mm 3.68mm
RS Stock No. 103-3898
Mfr. Part No.1N5338BRLG
$0.204
Each (On a Reel of 4000)
units
Single 5.1V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 240mA 1.5Ω 1µA 8.89mm 3.68mm
RS Stock No. 625-6451
Mfr. Part No.1N5338BRLG
$0.72
Each (In a Pack of 5)
units
Single 5.1V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 240mA 1.5Ω 1µA 8.89mm 3.68mm
RS Stock No. 463-274
Mfr. Part No.1N5338BG
$0.547
Each (In a Pack of 10)
units
Single 5.1V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 240mA 1.5Ω 1µA 8.89mm 3.68mm
RS Stock No. 136-4788
Mfr. Part No.BZX79-C5V1,133
BrandNexperia
$0.029
Each (On a Tape of 10000)
units
Single 5.1V Through Hole 1 500 mW SOD27 (DO-35) Voltage Regulator ±2 %, ±5 % 2 5mA 480 Ω @ 1 mA - 4.25mm -
RS Stock No. 544-3597
Mfr. Part No.BZX79-C5V1,113
BrandNexperia
$0.201
Each (In a Pack of 20)
units
Single 5.1V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 5mA 60Ω 2µA 4.25mm 1.85mm
RS Stock No. 136-4856
Mfr. Part No.BZX79-C5V1,133
BrandNexperia
$0.069
Each (In a Pack of 100)
units
Single 5.1V Through Hole 1 500 mW SOD27 (DO-35) Voltage Regulator ±2 %, ±5 % 2 5mA 480 Ω @ 1 mA - 4.25mm -
RS Stock No. 103-7574
Mfr. Part No.BZX79-C5V1,113
BrandNexperia
$0.029
Each (On a Reel of 10000)
units
Single 5.1V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 5mA 60Ω 2µA 4.25mm 1.85mm
RS Stock No. 169-8628
Mfr. Part No.1N4728ATR
$0.063
Each (On a Reel of 3000)
units
Single 3.3V Through Hole 1 1 W DO-41 General Purpose 5% 2 76mA 10Ω 100µA 5.2mm -
RS Stock No. 476-0289
Mfr. Part No.UDZSTE-17 15B
BrandROHM
$0.135
Each (In a Pack of 100)
units
Single 15V Surface Mount 1 200 mW SOD-323F Voltage Regulator 2% 2 5mA 42Ω 100nA 1.7mm 1.25mm
RS Stock No. 805-0034
Mfr. Part No.1N4728ATR
$0.114
Each (In a Pack of 100)
units
Single 3.3V Through Hole 1 1 W DO-41 General Purpose 5% 2 76mA 10Ω 100µA 5.2mm -
RS Stock No. 774-3313
Mfr. Part No.1N5378BG
$0.57
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 -
RS Stock No. 476-0188
Mfr. Part No.UDZSTE-17 6.2B
BrandROHM
$0.082
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 1.25mm
RS Stock No. 103-3900
Mfr. Part No.1N5378BRLG
$0.204
Each (On a Reel of 4000)
units
Single 100V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 12mA 800Ω 500nA 8.89mm 3.68mm
RS Stock No. 625-6518
Mfr. Part No.1N5378BRLG
$0.72
Each (In a Pack of 5)
units
Single 100V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 12mA 800Ω 500nA 8.89mm 3.68mm
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