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. 738-5058
Mfr. Part No.MMSZ5245B-7-F
TWD2.10
Each (In a Pack of 100)
units
Single 15V Surface Mount 1 500 mW SOD-123 Voltage Regulator 5% 2 8.5mA 600Ω 100nA 2.85mm 1.7mm
RS Stock No. 121-9491
Mfr. Part No.MMSZ5245B-7-F
TWD1.10
Each (On a Reel of 3000)
units
Single 15V Surface Mount 1 500 mW SOD-123 Voltage Regulator 5% 2 8.5mA 600Ω 100nA 2.85mm 1.7mm
RS Stock No. 738-4951
Mfr. Part No.BZT52C5V1-7-F
TWD2.00
Each (In a Pack of 200)
units
Single 5.1V Surface Mount 1 500 mW SOD-123 General Purpose 6% 2 5mA 480Ω 2µA 2.85mm 1.7mm
RS Stock No. 121-9478
Mfr. Part No.BZT52C5V1-7-F
TWD1.10
Each (On a Reel of 3000)
units
Single 5.1V Surface Mount 1 500 mW SOD-123 Voltage Regulator 6% 2 5mA 480Ω 2µA 2.85mm 1.7mm
RS Stock No. 751-3819
Mfr. Part No.BZT52C9V1-7-F
TWD2.00
Each (On a Tape of 100)
units
Single 9.1V Surface Mount 1 500 mW SOD-123 Voltage Regulator 6% 2 5mA 15Ω 500nA 2.85mm 1.7mm
RS Stock No. 169-0677
Mfr. Part No.BZT52C9V1-7-F
TWD1.10
Each (On a Reel of 3000)
units
Single 9.1V Surface Mount 1 500 mW SOD-123 Voltage Regulator 6% 2 5mA 15Ω 500nA 2.85mm 1.7mm
RS Stock No. 770-4885
Mfr. Part No.DDZ16CSF-7
TWD1.70
Each (On a Tape of 100)
units
Single 16V Surface Mount 1 500 mW SOD-323F Voltage Regulator 2.5% 2 10mA 40Ω 70nA 1.8mm 1.35mm
RS Stock No. 122-1462
Mfr. Part No.DDZ16CSF-7
TWD0.90
Each (On a Reel of 3000)
units
Single 16V Surface Mount 1 500 mW SOD-323F Voltage Regulator 2.5% 2 10mA 40Ω 70nA 1.8mm 1.35mm
RS Stock No. 751-3711
Mfr. Part No.BZT52C2V0-7-F
TWD2.00
Each (On a Tape of 250)
units
Single 2V Surface Mount 1 500 mW SOD-123 Voltage Regulator 5% 2 5mA 100Ω 150µA 2.85mm 1.7mm
RS Stock No. 822-2270
Mfr. Part No.BZT52C51-7-F
TWD2.00
Each (In a Pack of 200)
units
Single 51V Surface Mount 1 500 mW SOD-123 General Purpose 6% 2 5mA 100Ω 100nA 2.85mm 1.7mm
RS Stock No. 121-9533
Mfr. Part No.BZT52C2V0S-7-F
TWD1.40
Each (On a Reel of 3000)
units
Single 2V Surface Mount 1 200 mW SOD-323 Voltage Regulator 5% 2 5mA 100Ω 150µA 1.8mm 1.4mm
RS Stock No. 751-3714
Mfr. Part No.BZT52C2V0S-7-F
TWD2.60
Each (In a Pack of 100)
units
Single 2V Surface Mount 1 200 mW SOD-323 Voltage Regulator 5% 2 5mA 100Ω 150µA 1.8mm 1.4mm
RS Stock No. 823-1782
Mfr. Part No.UDZ5V6B-7
TWD3.10
Each (In a Pack of 200)
units
Single 5.6V Surface Mount 1 200 mW SOD-323 General Purpose 2% 2 5mA 60Ω 1µA 1.8mm 1.4mm
RS Stock No. 121-9532
Mfr. Part No.BZT52C2V0-7-F
TWD1.10
Each (On a Reel of 3000)
units
Single 2V Surface Mount 1 500 mW SOD-123 Voltage Regulator 5% 2 5mA 100Ω 150µA 2.85mm 1.7mm
RS Stock No. 169-0757
Mfr. Part No.DDZ18ASF-7
TWD1.00
Each (On a Reel of 3000)
units
Single 16V Surface Mount 1 500 mW SOD-323F Voltage Regulator 2.5% 2 10mA 45Ω 70nA 1.8mm 1.35mm
RS Stock No. 165-8755
Mfr. Part No.UDZ5V6B-7
TWD1.60
Each (On a Reel of 3000)
units
Single 5.6V Surface Mount 1 200 mW SOD-323 General Purpose 2% 2 5mA 60Ω 1µA 1.8mm 1.4mm
RS Stock No. 770-4894
Mfr. Part No.DDZ18ASF-7
TWD2.00
Each (In a Pack of 100)
units
Single 16V Surface Mount 1 500 mW SOD-323F Voltage Regulator 2.5% 2 10mA 45Ω 70nA 1.8mm 1.35mm
RS Stock No. 165-8822
Mfr. Part No.BZT52C51-7-F
TWD1.10
Each (On a Reel of 3000)
units
Single 51V Surface Mount 1 500 mW SOD-123 General Purpose 6% 2 5mA 100Ω 100nA 2.85mm 1.7mm
RS Stock No. 751-4010
Mfr. Part No.DFLZ10-7
TWD12.40
Each (On a Tape of 25)
units
Single 10V Surface Mount 1 1 W PowerDI 123 Voltage Regulator 5% 2 50mA 5µA 3mm 1.93mm
RS Stock No. 823-1549
Mfr. Part No.MMSZ5239B-7-F
TWD2.10
Each (In a Pack of 200)
units
Single 9.1V Surface Mount 1 500 mW SOD-123 General Purpose 5% 2 20mA 10Ω 3µA 2.85mm 1.7mm