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. 103-3901
Mfr. Part No.1N5383BRLG
HK$1.038
Each (On a Reel of 4000)
units
Single 150V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 8mA 330Ω 500nA 8.89mm -
RS Stock No. 774-3322
Mfr. Part No.1N5383BG
HK$2.238
Each (In a Pack of 10)
units
Single 150V Through Hole 1 5 W Surmetic 40 Voltage Regulator 5% 2 8mA 330Ω 500nA 8.89mm 3.68mm
RS Stock No. 625-6530
Mfr. Part No.1N5383BRLG
HK$3.766
Each (In a Pack of 5)
units
Single 150V Through Hole 1 5 W DO-15 Voltage Regulator 5% 2 8mA 330Ω 500nA 8.89mm -
RS Stock No. 170-3470
Mfr. Part No.1N5383BG
HK$1.165
Each (In a Bag of 1000)
units
Single 150V Through Hole 1 5 W Surmetic 40 Voltage Regulator 5% 2 8mA 330Ω 500nA 8.89mm 3.68mm
RS Stock No. 162-9443
Mfr. Part No.MMSZ4679T1G
HK$0.249
Each (On a Reel of 3000)
units
Single 2V Surface Mount 1 500 mW SOD-123 Voltage Regulator 5% 2 0.05mA - 5µA 2.84mm -
RS Stock No. 791-6179
Mfr. Part No.MMSZ4679T1G
HK$0.492
Each (In a Pack of 100)
units
Single 2V Surface Mount 1 500 mW SOD-123 Voltage Regulator 5% 2 0.05mA - 5µA 2.84mm -
RS Stock No. 146-2336
Mfr. Part No.BZT52B15 RH
HK$0.198
Each (On a Reel of 3000)
units
Single 15V Surface Mount 1 500 mW SOD-123F General Purpose 2% 2 5mA 30Ω 45nA 2.7mm -
RS Stock No. 796-9962
Mfr. Part No.BZT52B15 RH
HK$0.457
Each (In a Pack of 250)
units
Single 15V Surface Mount 1 500 mW SOD-123F General Purpose 2% 2 5mA 30Ω 45nA 2.7mm -
RS Stock No. 710-6192
Mfr. Part No.DZ2S150M0L
BrandPanasonic
HK$0.881
Each (In a Pack of 20)
units
Single 15V Surface Mount 1 150 mW SSMini2 F5 B General Purpose - 2 5mA 80Ω 50nA 1.2mm -
RS Stock No. 168-3627
Mfr. Part No.DZ2S150M0L
BrandPanasonic
HK$0.211
Each (On a Reel of 3000)
units
Single 15V Surface Mount 1 150 mW SSMini2 F5 B General Purpose - 2 5mA 80Ω 50nA 1.2mm -
RS Stock No. 169-8569
Mfr. Part No.BZX85C18
HK$0.259
Each (In a Bag of 1000)
units
Single 18V Through Hole 1 1 W DO-41 Voltage Regulator 5% 2 15mA 20Ω 500nA 5.2mm 2.72mm
RS Stock No. 759-8848
Mfr. Part No.BZX85C18
HK$0.507
Each (In a Pack of 100)
units
Single 18V Through Hole 1 1 W DO-41 Voltage Regulator 5% 2 15mA 20Ω 500nA 5.2mm 2.72mm
RS Stock No. 145-2103
Mfr. Part No.MMBZ4621-E3-08
BrandVishay
HK$0.293
Each (On a Reel of 3000)
units
Single 3.6V Surface Mount 1 350 mW SOT-23 General Purpose ±5% 3 0.25mA 1700Ω 7.5µA 3.1mm -
RS Stock No. 903-0817
Mfr. Part No.MMBZ4621-E3-08
BrandVishay
HK$0.61
Each (On a Reel of 250)
units
Single 3.6V Surface Mount 1 350 mW SOT-23 General Purpose ±5% 3 0.25mA 1700Ω 7.5µA 3.1mm -
RS Stock No. 544-3503
Mfr. Part No.BZX79-C2V4,113
BrandNexperia
HK$0.706
Each (In a Pack of 20)
units
Single 2.4V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 5mA 100Ω 50µA 4.25mm -
RS Stock No. 145-4140
Mfr. Part No.SZMMBZ5245BLT1G
HK$0.141
Each (On a Reel of 3000)
units
Single 15V Surface Mount 1 225 mW SOT-23 Voltage Regulator 5% 3 - 16Ω 100nA 3.04mm -
RS Stock No. 781-5496
Mfr. Part No.SZMMBZ5245BLT1G
HK$0.836
Each (On a Tape of 50)
units
Single 15V Surface Mount 1 225 mW SOT-23 Voltage Regulator 5% 3 - 16Ω 100nA 3.04mm -
RS Stock No. 170-4201
Mfr. Part No.BZT52B10 RH
HK$0.253
Each (On a Reel of 3000)
units
Single 10V Surface Mount 1 500 mW SOD-123F General Purpose 2% 2 5mA 20Ω - 2.7mm -
RS Stock No. 165-9757
Mfr. Part No.1SMB5924B-13
HK$1.015
Each (On a Reel of 3000)
units
Single 9.1V Surface Mount 1 3 W SMB Voltage Regulator 5% 2 41.2mA 500Ω 5µA 4.57mm -
RS Stock No. 770-3377
Mfr. Part No.1SMB5924B-13
HK$2.084
Each (In a Pack of 25)
units
Single 9.1V Surface Mount 1 3 W SMB Voltage Regulator 5% 2 41.2mA 500Ω 5µA 4.57mm -
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