VLZ36B-GS18 Allicdata Electronics
Allicdata Part #:

VLZ36B-GS18-ND

Manufacturer Part#:

VLZ36B-GS18

Price: $ 0.00
Product Category:

Discrete Semiconductor Products

Manufacturer: Vishay Semiconductor Diodes Division
Short Description: DIODE ZENER 33.64V 500MW SOD80
More Detail: Zener Diode 33.64V 500mW Surface Mount SOD-80 Qua...
DataSheet: VLZ36B-GS18 datasheetVLZ36B-GS18 Datasheet/PDF
Quantity: 1000
1 +: 0.00000
Stock 1000Can Ship Immediately
$ 0
Specifications
Series: Automotive, AEC-Q101
Packaging: Tape & Reel (TR) 
Part Status: Obsolete
Voltage - Zener (Nom) (Vz): 33.64V
Tolerance: --
Power - Max: 500mW
Impedance (Max) (Zzt): 75 Ohms
Current - Reverse Leakage @ Vr: 40µA @ 31.2V
Voltage - Forward (Vf) (Max) @ If: 1.5V @ 200mA
Operating Temperature: -65°C ~ 175°C
Mounting Type: Surface Mount
Package / Case: SOD-80 Variant
Supplier Device Package: SOD-80 QuadroMELF
Description

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VLZ36B-GS18: Application Field and Working Principle

The VLZ36B-GS18 is a high power, three-terminal, glass surface-mount series Zener diode. It is most commonly used as a voltage regulator and as a surge or overload protection device. This diode is a member of the high quality Zener diodes family and offers many advantages, such as low forward voltage drop, low profile and fast switching speed.

The VLZ36B-GS18 is a high-voltage, low-power diode that is usually used in applications that require high-voltage protection, as well as low-voltage regulation. It features low leakage current and a wide operating temperature range so that it can be used in a wide range of applications. The Zener voltage range of this diode is 18V, which makes it suitable for a wide range of protection circuits, including automotive applications.

This diode is particularly suited to power supply applications that require high-voltage protection. It can be used in low-voltage power supplies, as well as in large-scale AC/DC converters for its high power rating and ability to sustain high reverse voltage. It can also be used in telecom, medical, and consumer systems, among others.

Working Principle

The working principle of the VLZ36B-GS18 is relatively simple, as it relies on the basic electrical concept of Zener breakdown. In order to understand its working principle, we can make use of the two circuit diagrams shown below.

VLZ36B-GS18 Circuit Diagrams

In the first circuit, the anode of the diode is directly connected to the positive terminal of the voltage source, whereas the cathode is connected to the negative terminal of the voltage source. This means that current will flow from the positive to the negative terminals through the diode.

When the applied voltage is below the Zener voltage (VZ) of the diode, the diode operates like a normal diode, i.e., it only allows current to flow in the forward direction. But, when the voltage across the diode exceeds the Zener voltage (VZ), the diode starts to conduct in the reverse direction. This is known as Zener breakdown. When this happens, the reverse current is limited by the Zener voltage, and the diode acts as a voltage regulator.

In the second circuit, the anode of the diode is connected to the negative terminal whilst the cathode is connected to the positive terminal of the voltage source. In this configuration, the diode is always forward biased, so current begins to flow from the positive to the negative terminal through the diode.

When the applied voltage is below the Zener voltage (VZ) of the diode, the diode operates as a normal diode and the current remains limited by the forward voltage (VF) of the diode. But, when the voltage across the diode exceeds the Zener voltage (VZ), the diode begins to conduct in the reverse direction and the current remains limited by the Zener voltage.

This can be particularly useful in power supply applications, where the Zener diode can be used to maintain the output voltage of the power supply at a constant level.

Conclusion

The VLZ36B-GS18 is a high-quality Zener diode that offers many advantages, such as low forward voltage drop, low profile, and fast switching speed. It is particularly suited to power supply applications that require high-voltage protection, and its Zener voltage range (18V) makes it suitable for a wide range of protection circuits, including automotive applications. Its working principle is based on the principle of Zener breakdown, and it can be used in both forward-biased and reverse-biased configurations.

The specific data is subject to PDF, and the above content is for reference

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