This Product Selection Guide contains information to help select products in the Zener Diode Arrays category on DigiKey.com
A Zener diode allows current to flow not only from its anode to its cathode, but also in the reverse direction when its Zener voltage is reached. They are used as voltage references and to regulate the voltage across small circuits. Zener diode networks or arrays are devices of two or more diodes in a single surface mount package. The diodes may be isolated from each other or connected in a common anode or common cathode circuit type.
SelectionCharacteristics
Configuration: Indicates the number of diodes in the array and the internal connections between them.
Voltage - Zener (Nom) (Vz): Indicates the nominal voltage required to pass a manufacturer-defined test current through a device in its reverse-breakdown mode. Typically specified for a device temperature near 25°C.
Tolerance: Characterizes the extent of permitted variability of device specifications among samples of a given part number, resulting from variations in manufacturing.
Power - Max: Typically this represents the maximum power rating to which a device will meet its given specifications. Exceeding this power rating may damage the device and other system components.
Impedance (Max) (Zzt): Characterizes the relationship between changes in zener voltage and current when a device is operated in its breakdown region, under manufacturer-defined test conditions.
Current - Reverse Leakage @ Vr: Characterizes current flow through a diode-based device resulting from application of a reverse-bias voltage of the indicated magnitude, under manufacturer-defined test conditions. Observed values vary with temperature.
Voltage - Forward (Vf) (Max) @ If: Characterizes the voltage drop across a forward-biased diode, measured at the test current indicated.
Operating Temperature: Recommended operating temperature, typically given in a range or as a maximum. Exceeding these temperatures may affect performance or damage the device and other system components.
Mounting Type: Indicates how the device is attached.
Package / Case: Indicates the type of protective case used on an electronic component to allow easy handling, installation, and protection. This selection was determined to be the closest industry standard applicable to the supplier device packaging. Typically it is best to check the actual dimensions from the datasheet rather than depend on this terminology when designing your circuit.
Supplier Device Package: This is what the manufacturer calls the package of this device. They are manufacturer specific. It is typically best to use the actual dimensions from the datasheets rather than to go by this terminology when designing your circuit.
ProductExamples
| MFR PART # | AZ23C5V6-E3-18 |
|---|---|
| DIGI-KEY PART # | AZ23C5V6-E3-18TR-ND - Tape & Reel (TR) |
| MANUFACTURER | Vishay General Semiconductor - Diodes Division |
| DESCRIPTION | Zener Diode Array 1 Pair Common Anode 5.6 V 300 mW ±7% SOT-23-3 |
| DATASHEET | Click Here |
| MFR PART # | BZX84C5V1S-7-F |
|---|---|
| DIGI-KEY PART # | BZX84C5V1S-FDITR-ND - Tape & Reel (TR) |
| MANUFACTURER | Diodes Incorporated |
| DESCRIPTION | Zener Diode Array 2 Independent 5.1 V 200 mW ±6% SOT-363 |
| DATASHEET | Click Here |
| MFR PART # | AZ23C5V6-TP |
|---|---|
| DIGI-KEY PART # | AZ23C5V6-TPMSTR-ND - Tape & Reel (TR) |
| MANUFACTURER | Micro Commercial Co |
| DESCRIPTION | Zener Diode Array 1 Pair Common Anode 5.6 V 300 mW ±5% SOT-23 |
| DATASHEET | Click Here |
| MFR PART # | SM16Z4689 |
|---|---|
| DIGI-KEY PART # | 150-SM16Z4689TR-ND - Tape & Reel (TR) |
| MANUFACTURER | Microsemi Corporation |
| DESCRIPTION | Zener Diode Array 8 Independent 5.1 V 1.5 W ±5% 16-SOIC |
| DATASHEET | Click Here |
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MediaLinks
Articles
The Fundamentals and Application of Zener, PIN, Schottky, and Varactor Diodes
Product Training Modules
Zener Diodes - Panasonic
Diodes Product - ROHM
Blogs
Zener Diode Basic Operation and Applications
Zener Diode Regulator with Transistor Current Buffers
Zener Diodes Won My High School Science Fair
TechForum
Schottky Diode vs. Zener Diode in application
Are Zener Diodes Unidirectional or Bidirectional