| Allicdata Part #: | 30312500421-ND |
| Manufacturer Part#: |
30312500421 |
| Price: | $ 1.65 |
| Product Category: | Circuit Protection |
| Manufacturer: | Littelfuse Inc. |
| Short Description: | FUSE BOARD MNT 2.5A 125VAC 63VDC |
| More Detail: | N/A |
| DataSheet: |  30312500421 Datasheet/PDF |
| Quantity: | 1000 |
| Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
| Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
| 300 +: | $ 1.49058 |
| Response Time: | Fast |
| Size / Dimension: | 0.236" Dia x 0.315" H (6.00mm x 8.00mm) |
| Color: | -- |
| Operating Temperature: | -25°C ~ 70°C |
| Approvals: | CSA, UL |
| Melting I²t: | 0.23 |
| Breaking Capacity @ Rated Voltage: | 50A |
| Mounting Type: | Through Hole |
| Package / Case: | Radial, Can, Vertical |
| Series: | TR3® 303 |
| Voltage Rating - DC: | 63V |
| Voltage Rating - AC: | 125V |
| Current Rating: | 2.5A |
| Fuse Type: | Board Mount (Cartridge Style Excluded) |
| Moisture Sensitivity Level (MSL): | -- |
| Part Status: | Active |
| Lead Free Status / RoHS Status: | -- |
| Packaging: | Bulk |
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Fuses
When it comes to protecting electrical systems and their components from risks such as overvoltage, overcurrent, and short circuit, fuses are the go-to safety device. When a fault occurs, all of the electrical current flowing will become too much for the fuse, and it will break the circuit, disconnecting the current. This means that fuses are an important safety component in any electrical system.
30312500421 Application Field
The 30312500421 is a fast-acting fuses with ratings up to 500VAC/VDC, 125A. It is a dual element, time-delay fuse with extremely low internal resistance, making it suitable for use with high-powered electrical systems. The low resistance enables it to be used for application fields such as power supplies, LED drivers, lighting systems, and industrial equipment.
Working Principle
Fuse operation principles include several varieties, of which the simplest involves a metal strip whose resistance to current is low. When an electrical current passes through this strip, it heats up and softens. A pressure- or temperature-sensitive elementary spring will then open the circuit, protecting the device from a surge in current.
When it comes to the 30312500421, it’s a dual element, time-delay fuse. This means that it can be used to protect components from overvoltage, short-circuiting, or open-circuit conditions. This fuse features two metal elements, one of which melts before the other. When the first element melts, it will absorb the energy surge and begin to open the circuit. If the surge is short enough, the second element won\'t melt, allowing the fuse to return to its original shape.
Conclusion
Since fuses are a critical safety component, the 30312500421 dual element, time-delay fuse is an ideal choice for protection against overvoltage, open-circuit, and short-circuit conditions in high-powered electrical systems. Its low resistance enables it to be used in a variety of applications with safety and reliability.
In summary, the 30312500421 fuse is a reliable safety device designed to provide protection against overvoltage, open-circuit, and short-circuit conditions in high-powered electrical systems. Its low internal resistance makes it an ideal choice for a wide range of applications.