3402.0044.11 Allicdata Electronics
Allicdata Part #:

3402.0044.11-ND

Manufacturer Part#:

3402.0044.11

Price: $ 0.34
Product Category:

Circuit Protection

Manufacturer: Schurter Inc.
Short Description: FUSE BRD MNT 375MA 63VAC/VDC SMD
More Detail: N/A
DataSheet: 3402.0044.11 datasheet3402.0044.11 Datasheet/PDF
Quantity: 1000
Lead Free Status / RoHS Status: Lead free / RoHS Compliant
100 +: $ 0.29988
Stock 1000Can Ship Immediately
$ 0.34
Specifications
Series: OMF 63
Packaging: Bulk 
Lead Free Status / RoHS Status: --
Part Status: Active
Fuse Type: Board Mount (Cartridge Style Excluded)
Current Rating: 375mA
Voltage Rating - AC: 63V
Voltage Rating - DC: 63V
Response Time: Fast
Package / Case: 2-SMD, J-Lead
Mounting Type: Surface Mount
Breaking Capacity @ Rated Voltage: 50A
Melting I²t: 0.013
Approvals: cURus
Operating Temperature: -55°C ~ 125°C
Color: --
Size / Dimension: 0.291" L x 0.122" W x 0.102" H (7.40mm x 3.10mm x 2.60mm)
Description

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Fuses are electrical components that are designed to protect electrical circuits from short circuits and overloads. They generally consist of a conductor inside a casing that is designed to melt, thereby interrupting the current flow, when an excessive amount of current is flowing through it. The 3402.0044.11 fuse is a fusing component that is part of the class of fuses known as time lag fuses. These types of fuses are designed to provide a delayed response to a short circuit or overload, in order to provide additional protection for the circuit.

Application Field

The 3402.0044.11 time lag fuse from Littelfuse is a mid-range, general purpose, 250 VAC fuse. This fuse is primarily used to provide protection from overloads or short circuits in applications such as heating and ventilation, power supplies and power tools. This particular model is suitable for use in both commercial and residential applications and is UL listed.

Working Principle

Time-lag or delayed-action fuses contain a bimetallic element that acts as a heat sink. This element deforms when excessive amounts of current flow through the fuse, which causes the contacts to open and interrupt the current. There are two principal types of time lag fuses – class H and class R. The 3402.0044.11 is a class R time lag fuse. This type of fuse is designed to provide a slightly longer response time to a short circuit or overload, providing additional protection for the circuit.

The fuse is a two-piece component with an outer casing that contains a bimetallic element enclosed in a ceramic tube. The bimetallic element consists of two metal strips, which are connected together but act independently of each other. When an overload occurs, the heat produced by the overload warms up the bimetallic element, causing it to deform. This deformation separates the contacts inside the fuse, interrupting the current flow. The response time is determined by the combination of the heat dissipation properties of the bimetallic element and the time it takes for the current to warm up the element to the point where it deforms.

Technical Specifications

The 3402.0044.11 time lag fuse is rated at 250 VAC with a current rating of 15A. The fuse is characterized by a 660V.DC maximum interrupting rating, with a maximum let-through energy of 10mJ. The minimum and maximum operating temperatures are -4° to 158°F (-20° to 70°C). It also has an operating current of Ith = 10A.

The 3402.0044.11 time lag fuse also meets UL, CSA and TUV standards and is UL, CSA and TUV temperature rated, and it is also approved for use in hazardous, industrial and commercial locations. The fuse is epoxy encapsulated to ensure it is able to withstand vibration, shock and humidity.

Conclusion

The 3402.0044.11 time lag fuse from Littelfuse is a mid-range, general purpose 250 VAC fuse, suitable for use in commercial and residential applications. It is a two-piece component that contains a bimetallic element designed to provide a delayed response to a short circuit or overload in order to provide additional protection for the circuit. It also meets UL, CSA and TUV standards and is UL, CSA and TUV temperature rated. The fuse is epoxy encapsulated to withstand vibration, shock and humidity.

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

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