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. 544-3503
Mfr. Part No.BZX79-C2V4,113
BrandNexperia
HK$0.965
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. 816-6791
Mfr. Part No.PLVA662A,215
BrandNexperia
HK$2.136
Each (In a Pack of 50)
units
Single 6.2V Surface Mount 1 250 mW SOT-23 Avalanche 3% 3 0.25mA - 100nA 3mm -
RS Stock No. 166-0306
Mfr. Part No.BZX79-C18,113
BrandNexperia
HK$0.151
Each (On a Reel of 10000)
units
Single 18V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 5mA 45Ω 50nA 4.25mm -
RS Stock No. 165-8781
Mfr. Part No.PLVA662A,215
BrandNexperia
HK$0.659
Each (On a Reel of 3000)
units
Single 6.2V Surface Mount 1 250 mW SOT-23 Avalanche 3% 3 0.25mA - 100nA 3mm -
RS Stock No. 544-4499
Mfr. Part No.BZX79-C18,113
BrandNexperia
HK$0.965
Each (In a Pack of 20)
units
Single 18V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 5mA 45Ω 50nA 4.25mm -
RS Stock No. 136-4791
Mfr. Part No.BZX79-C18,133
BrandNexperia
HK$0.17
Each (On a Tape of 10000)
units
Single 18V Through Hole 1 500 mW SOD27 (DO-35) Voltage Regulator ±2 %, ±5 % 2 5mA 225 Ω @ 1 mA - 4.25mm 1.85mm
RS Stock No. 136-4880
Mfr. Part No.BZX79-C18,133
BrandNexperia
HK$0.351
Each (In a Pack of 100)
units
Single 18V Through Hole 1 500 mW SOD27 (DO-35) Voltage Regulator ±2 %, ±5 % 2 5mA 225 Ω @ 1 mA - 4.25mm 1.85mm
RS Stock No. 509-548
Mfr. Part No.BZX84-C6V8,215
BrandNexperia
HK$0.403
Each (In a Pack of 200)
units
Single 6.8V Surface Mount 1 250 mW SOT-23 (TO-236AB) Voltage Regulator 5% 3 5mA 15Ω 2µA 3mm -
RS Stock No. 166-1315
Mfr. Part No.BZX84-C6V8,215
BrandNexperia
HK$0.21
Each (On a Reel of 3000)
units
Single 6.8V Surface Mount 1 250 mW SOT-23 (TO-236AB) Voltage Regulator 5% 3 5mA 15Ω 2µA 3mm -
RS Stock No. 166-0304
Mfr. Part No.BZX79-C8V2,113
BrandNexperia
HK$0.155
Each (On a Reel of 10000)
units
Single 8.2V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 5mA 15Ω 700nA 4.25mm -
RS Stock No. 166-1238
Mfr. Part No.BZX79-C68,113
BrandNexperia
HK$0.176
Each (On a Reel of 5000)
units
Single 68V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 2mA 240Ω 50nA 4.25mm -
RS Stock No. 165-9970
Mfr. Part No.BZX84J-C2V4,115
BrandNexperia
HK$0.478
Each (On a Reel of 3000)
units
Single 2V Surface Mount 1 550 mW SOD-323F General Purpose 5% 2 5mA - 50µA 1.8mm -
RS Stock No. 170-8024
Mfr. Part No.BZX84-C6V8,235
BrandNexperia
HK$0.176
Each (On a Reel of 10000)
units
Single 6.8V Surface Mount 1 250 mW TO-236 Voltage Regulator ±5% 3 10mA - 2µA 3mm -
RS Stock No. 816-0453
Mfr. Part No.BZX84J-C2V4,115
BrandNexperia
HK$0.822
Each (In a Pack of 150)
units
Single 2V Surface Mount 1 550 mW SOD-323F General Purpose 5% 2 5mA - 50µA 1.8mm -
RS Stock No. 544-4449
Mfr. Part No.BZX79-C8V2,113
BrandNexperia
HK$1.03
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. 509-144
Mfr. Part No.BZX79-C68,113
BrandNexperia
HK$0.344
Each (In a Pack of 100)
units
Single 68V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 2mA 240Ω 50nA 4.25mm -
RS Stock No. 544-3604
Mfr. Part No.BZX79-C5V6,113
BrandNexperia
HK$0.965
Each (In a Pack of 20)
units
Single 5.6V Through Hole 1 500 mW DO-35 Voltage Regulator 5% 2 5mA 40Ω 1µA 4.25mm -
RS Stock No. 178-7066
Mfr. Part No.BZV55-C2V4,115
BrandNexperia
HK$0.252
Each (On a Reel of 2500)
units
Single 2.4V Surface Mount 1 500 mW MiniMELF Voltage Regulator 5% 2 5mA 100Ω 50µA 3.7mm -
RS Stock No. 166-1330
Mfr. Part No.BZX384-C12,115
BrandNexperia
HK$0.319
Each (On a Reel of 3000)
units
Single 12V Surface Mount 1 300 mW UMD Voltage Regulator 5% 2 5mA 25Ω 100nA 1.8mm -
RS Stock No. 865-2069
Mfr. Part No.1N4742A,113
BrandNexperia
HK$0.696
Each (In a Pack of 100)
units
Single 12V Through Hole 1 1 W SOD-66 Voltage Regulator 5% 2 21mA - 5µA - 2.6mm