
Allicdata Part #: | 30311250421-ND |
Manufacturer Part#: |
30311250421 |
Price: | $ 1.65 |
Product Category: | Circuit Protection |
Manufacturer: | Littelfuse Inc. |
Short Description: | FUSE BRD MNT 1.25A 125VAC 63VDC |
More Detail: | N/A |
DataSheet: | ![]() |
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: | 0.059 |
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: | 1.25A |
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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30311250421 Application Field and Working Principle
The 30311250421 has become an important component in electrical, electronics, and machinery. With its name indicating the value of amperes that can be safely interrupted, this type of fuse is used in electrical and electronic circuits for overcurrent protection and protection against short-circuits, opening circuit feedback or overloads.
The 30311250421 has a variety of applications, ranging from use in consumer electronics such as cellular phones and portable media players, to use in small and large machinery, from personal computers to industrial robots, being that anyway that electric current needs to be protected from surges, short-circuits, and overloads.
The 30311250421 functions as a current-limiting device, meaning that when there is an overload or short-circuit in an electrical or electronic system, it will detect and open the circuit quickly to prevent more damage from happening. This type of fuse has a metal case and is sealed with glass-fiber material, which has a melting point that is lower than the conductors it protects. This means that when the current is too high, the glass-fiber melts and disrupts the flow of electricity, which in turn trips the fuse, and in this way avoids serious damage and costly repairs.
In addition, the 30311250421 has a lower melting point than a regular fuse, making it a viable option for quick overcurrent protection and efficient circuit interruption, which allows short-circuited or overloaded electrical circuits to be reset without the need to physically unplug and plug the fuse back in. This saves time for the end user and prevents any possible danger to technicians.
Apart from its application field, this type of fuse also has several different forms which indicate its working principle. These forms include blade type fuses, cartridge style fuses, and SMD fuses. Depending on its type and size, the 30311250421 can carry different amount of amperage, and it is important to remember that the fuse should be chosen according to the current it is going to be exposed to.
Being able to detect and act quickly under high current conditions, the 30311250421 has become the preferred configuration for all types of protection and circuit interruption solutions. As its use is applicable to all kinds of electric, electronic, and mechanical systems, this type of fuse has become very popular among manufacturers and end-users alike, often being the preferred choice for those seeking the most efficient protection solutions.
The specific data is subject to PDF, and the above content is for reference
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