Allicdata Part #: | VDRH20X320BKE-ND |
Manufacturer Part#: |
VDRH20X320BKE |
Price: | $ 0.90 |
Product Category: | Circuit Protection |
Manufacturer: | Vishay BC Components |
Short Description: | VDR HS 20D 100AA 320V KNLDS BULK |
More Detail: | 510V 10kA Varistor 1 Circuit Through Hole Disc 22.... |
DataSheet: | VDRH20X320BKE Datasheet/PDF |
Quantity: | 1000 |
Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
500 +: | $ 0.81706 |
Series: | VDRH |
Part Status: | Active |
Lead Free Status / RoHS Status: | -- |
Maximum AC Volts: | 320V |
Maximum DC Volts: | 420V |
Varistor Voltage (Min): | 459V |
Varistor Voltage (Typ): | 510V |
Varistor Voltage (Max): | 561V |
Current - Surge: | 10kA |
Energy: | 382J |
Number of Circuits: | 1 |
Capacitance @ Frequency: | 750pF @ 1kHz |
Operating Temperature: | -40°C ~ 125°C |
Mounting Type: | Through Hole |
Package / Case: | Disc 22.50mm |
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TVS (Transient Voltage Suppressors) Varistors, MOVs (Metal Oxide Varistors) and the VDRH20X320BKE find use in similar application fields. These components are principally chosen over other options because of their indestructibility, combination of low prices with high performance, and their highly adjustable properties.
The main application fields for these components are in protection against electrical transients, over or under-voltage protection, and overloads. In the past these components also saw application in testing and monitoring, although modern day designs favor more purpose-built components. For example, a VDRH20X320BKE may be used to protect a sensitive system from lightning or sudden increases in voltage.
The VDRH20X320BKE, like many Varistors and MOVs, has a non-linear voltage-current relationship which can be seen in its characteristic curve. These curves determine the component\'s response to different levels of voltages and currents, allowing designers to pick the appropriate component for their application. Generally speaking, higher energy requirements call for components with higher energy ratings.
The VDRH20X320BKE exhibits a particular pattern of characteristic curves, depending on the voltage applied to it. When a high voltage is applied, it forms a symmetrical curve with larger negative values than at lower voltages. However the two curves differ only in a single point – at the 0V point – which is the point at which the line crosses the x-axis.
The working principle of the VDRH20X320BKE is that of a voltage dependent resistor. When current is passed through it, the internal resistance increases as the voltage across the component increases. This works to protect sensitive devices from surges and spikes by absorbing the extra energy. Due to the non-linear nature of the component, the current at any given voltage is an exponential function of the voltage.
The main benefits of using a VDRH20X320BKE over other components for protection against electrical transients are its cost, indestructibility, very short response time and highly adjustable parameters. In addition, it is easy to select the correct component for a given application using the data provided in the datasheet. This makes the VDRH20X320BKE an ideal choice for applications that require electrical transients protection.
The specific data is subject to PDF, and the above content is for reference
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