GDZ3V9B-HG3-18 Allicdata Electronics
Allicdata Part #:

GDZ3V9B-HG3-18-ND

Manufacturer Part#:

GDZ3V9B-HG3-18

Price: $ 0.04
Product Category:

Discrete Semiconductor Products

Manufacturer: Vishay Semiconductor Diodes Division
Short Description: DIODE ZENER 3.9V 200MW SOD323
More Detail: Zener Diode 3.9V 200mW ±2% Surface Mount SOD-323
DataSheet: GDZ3V9B-HG3-18 datasheetGDZ3V9B-HG3-18 Datasheet/PDF
Quantity: 1000
10000 +: $ 0.03175
Stock 1000Can Ship Immediately
$ 0.04
Specifications
Series: Automotive, AEC-Q101
Packaging: Tape & Reel (TR) 
Part Status: Active
Voltage - Zener (Nom) (Vz): 3.9V
Tolerance: ±2%
Power - Max: 200mW
Impedance (Max) (Zzt): 100 Ohms
Current - Reverse Leakage @ Vr: 5µA @ 1V
Operating Temperature: -55°C ~ 150°C
Mounting Type: Surface Mount
Package / Case: SC-76, SOD-323
Supplier Device Package: SOD-323
Description

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The GDZ3V9B-HG3-18 is a Zener Diode belonging to the single type. It has a wide range of applications in switching, rectifying and other related operations due to its significant properties. This article will discuss the working principle and potential applications of the GDZ3V9B-HG3-18.The GDZ3V9B-HG3-18 has the capacity to operate under the "Zener Breakdown" or "Degenerate Mode". It has a reverse(-ve to +ve) breakdown voltage (Vz) of 3.9 Volts, a rated power of 1/4 Watt and a maximum reverse current (Iz) of 500 micro Amps. It has an operating temperature range of -55°C to +125°C. These properties make it a suitable selection for power supply design and noise reduction applications. Working Principle:Zener Breakdown can be described as an electrical breakdown process with the terminal voltage between the cathode and anode exceeding the breakdown point of the diode when the anode is negatively biased. This phenomenon is attributed to the avalanching effect. The Zener breakdown mechanism occurs with the application of a high voltage across the Zener diode. By definition, diodes have a non-linear relationship between reverse current and reverse voltage. A small amount of current flows through the device when a higher than normal amount of voltage is applied. As the current further increases, the diode reduces its resistance and the current increases exponentially. This leads to a rapid increase in the current flow, which is known as the avalanche effect. The current continues to increase until it reaches a maximum value and the avalanche effect stops.Applications: The GDZ3V9B-HG3-18 is commonly used in voltage regulation and power supply designs. Due to its 3.9V breakdown voltage, it is ideal for applications where a specific voltage is required. Additionally, the GDZ3V9B-HG3-18 is a good choice for noise reduction circuit designs as it can perform well as a clamping element. Since this Zener diode has a high operating temperature range, it can also be used in applications that require temperature management and protection. The GDZ3V9B-HG3-18 is also employed in detector, regulator and rectifier circuits. In the detector circuit, it can detect the input signal, while in the regulator circuit, it maintains the output voltage at a steady level. In the rectifier circuit, the diode provides the rectifying action necessary for the conversion of alternating current to direct current. Finally, due to its low voltage drop, the GDZ3V9B-HG3-18 can be used in automotive applications such as window defrosters and headlamps as well.In conclusion, the GDZ3V9B-HG3-18 belonging to the single type of Zener diode has a breakdown voltage of 3.9V, rated power of 1/4 Watt and a maximum reverse current of 500 micro Amps. It has a wide range of applications in switching, rectifying, voltage regulation and noise reduction. As it can also operate across a wide temperature range, it is suitable for temperature management and protection applications. This device has become an essential component in many areas due to its unique and powerful properties.

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