V481DA40 Allicdata Electronics
Allicdata Part #:

F3747-ND

Manufacturer Part#:

V481DA40

Price: $ 32.92
Product Category:

Circuit Protection

Manufacturer: Littelfuse Inc.
Short Description: VARISTOR 750V 40KA CHASSIS
More Detail: 750V 40kA Varistor 1 Circuit Chassis Mount Encased...
DataSheet: V481DA40 datasheetV481DA40 Datasheet/PDF
Quantity: 60
Moisture Sensitivity Level (MSL): 1 (Unlimited)
Lead Free Status / RoHS Status: Lead free / RoHS Compliant
1 +: $ 29.93130
10 +: $ 27.98840
25 +: $ 25.88540
100 +: $ 24.26760
250 +: $ 22.64980
Stock 60Can Ship Immediately
$ 32.92
Specifications
Varistor Voltage (Typ): 750V
Package / Case: Encased Disc
Mounting Type: Chassis Mount
Operating Temperature: -55°C ~ 85°C (TA)
Capacitance @ Frequency: 2700pF @ 1MHz
Number of Circuits: 1
Energy: 650J
Current - Surge: 40kA
Varistor Voltage (Max): 825V
Series: DA
Varistor Voltage (Min): 675V
Maximum DC Volts: 640V
Maximum AC Volts: 480V
Moisture Sensitivity Level (MSL): --
Part Status: Active
Lead Free Status / RoHS Status: --
Packaging: Bulk 
Description

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TVS - Varistors, MOVs: Varistor V481DA40 Application Field and Working Principle

V481DA40 varistors are cylindrical components with two metal tabs at the top. They feature a high temperature rating and a relatively low operating voltage, making them well-suited for a variety of industrial and electronic applications.

The varistor\'s working principle is straightforward. It is essentially a two-terminal device, with one terminal connected to earth. When a voltage is applied between the two terminals, the junction increasingly resists and charges collect at the junction. This results in a ‘crowbar’ action when the voltage exceeds the rated voltage, clamping the voltage to the specified value. This helps protect any sensitive devices connected to that circuit.

The V481DA40 is a type of varistor commonly utilized in telecommunication and computing equipment, because it can readily provide lightning protection and ESD protection. It can also be used in switches, amplifiers, machines, cars and lighting fixtures. The devices feature a movable element, enabling them to effectively absorb and control static electricity or spatial voltage.

The V481DA40 varistors feature a wide operating temperature range, making them well-suited for many different applications. The device also features low leakage current, making it ideal for use in computers and other sensitive electronic systems. The device is also capable of withstanding high voltages and long-term operation under harsh conditions.

The V481DA40 is also designed with high insulation resistance and a strong resistance-to-temperature coefficient. This enables the component to maintain its rating against the environmental changes and also maintain its rating during long term operation.

These varistors are relatively inexpensive and easy to install, making them popular among electrical and computer engineers for many different applications. In addition to providing long-term protection against high voltages, the device also features a relatively low failure rate when properly used.

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

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