V321DA40 Allicdata Electronics
Allicdata Part #:

F3744-ND

Manufacturer Part#:

V321DA40

Price: $ 26.75
Product Category:

Circuit Protection

Manufacturer: Littelfuse Inc.
Short Description: VARISTOR 510V 40KA CHASSIS
More Detail: 510V 40kA Varistor 1 Circuit Chassis Mount Encased...
DataSheet: V321DA40 datasheetV321DA40 Datasheet/PDF
Quantity: 26
Moisture Sensitivity Level (MSL): 1 (Unlimited)
Lead Free Status / RoHS Status: Lead free / RoHS Compliant
1 +: $ 24.32430
10 +: $ 22.49790
25 +: $ 20.67360
100 +: $ 19.21420
250 +: $ 17.63340
Stock 26Can Ship Immediately
$ 26.75
Specifications
Varistor Voltage (Typ): 510V
Package / Case: Encased Disc
Mounting Type: Chassis Mount
Operating Temperature: -55°C ~ 85°C (TA)
Capacitance @ Frequency: 3800pF @ 1MHz
Number of Circuits: 1
Energy: 460J
Current - Surge: 40kA
Varistor Voltage (Max): 561V
Series: DA
Varistor Voltage (Min): 459V
Maximum DC Volts: 420V
Maximum AC Volts: 320V
Moisture Sensitivity Level (MSL): --
Part Status: Active
Lead Free Status / RoHS Status: --
Packaging: Bulk 
Description

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The V321DA40 is a metal oxide varistor (MOV) that belongs to a class of electrical components known as transient voltage suppressors (TVS). The V321DA40 can be used to suppress transient voltage spikes or surges that are greater than a certain voltage limit, thus protecting the surrounding electrical circuits from damage due to over-voltage.

The V321DA40 is composed of a ceramic body in which a metal oxide material of zinc oxide is compressed and formed into small discs, or so-called diskvaristors. This material has the ability to act as an electrical resistance that changes depending on the applied voltage. The V321DA40 is usually rated with a working voltage of life up to 40 V and a surge current of 840A.

The main purpose of the V321DA40 is to protect sensitive electronic equipment against voltage spikes and transients generated both externally and internally. Due to its highly consistent performance, the V321DA40 is suitable for many different applications and is particularly suited for motor control, power supplies, telecommunications, etc.

The working principle of the V321DA40 is to clamp the voltage to a certain level which is lower than the start voltage of the affected electronic equipment. When a voltage spike or surge exceeds the specified operating voltage of the V321DA40, current will flow through the varistor which raises its temperature and causes it to resist the voltage, thus clamping the voltage to a safe level. Once the transient has passed, the device will automatically reset and remain in standby mode until another transient appears.

In order to ensure maximum performance, it is important to consider the distance of the V321DA40 from the affected device and the ambient temperature of the environment in which it is operating. Unfavorable temperatures may decrease the life of the device or cause it to fail prematurely. It is also recommended to follow the recommended installation instructions from the manufacturer to ensure the best results.

In conclusion, the V321DA40 is a reliable and efficient reliable device for transient voltage protection. Its metal oxide varistor construction and self-resetting feature make it a popular choice for many different applications. Understanding its working principles and taking into consideration its mounting and temperature requirements will ensure the best performance in any application.

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

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