Allicdata Part #: | F4179TR-ND |
Manufacturer Part#: |
0242.125UR |
Price: | $ 1.70 |
Product Category: | Circuit Protection |
Manufacturer: | Littelfuse Inc. |
Short Description: | FUSE CARTRIDGE 125MA 250VAC/VDC |
More Detail: | N/A |
DataSheet: | 0242.125UR Datasheet/PDF |
Quantity: | 2500 |
Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
500 +: | $ 1.54473 |
1000 +: | $ 1.46483 |
1500 +: | $ 1.38493 |
2500 +: | $ 1.33166 |
Series: | 242 |
Packaging: | Tape & Reel (TR) |
Lead Free Status / RoHS Status: | -- |
Part Status: | Active |
Moisture Sensitivity Level (MSL): | -- |
Fuse Type: | Cartridge |
Current Rating: | 125mA |
Voltage Rating - AC: | 250V |
Voltage Rating - DC: | 250V |
Response Time: | Fast |
Applications: | Hazardous Locations |
Features: | Intrinsically Safe |
Class: | -- |
Approvals: | UR |
Operating Temperature: | -40°C ~ 125°C |
Breaking Capacity @ Rated Voltage: | 4kA |
Mounting Type: | Surface Mount |
Package / Case: | Cartridge, Non-Standard |
Size / Dimension: | 0.119" Dia x 0.331" L (3.02mm x 8.40mm) |
Melting I²t: | 0.001026 |
DC Cold Resistance: | 3.78 Ohms |
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0242.125UR application field and working principle are important topics in the field of Electrical, Specialty Fuses. The 0242.125UR is a special fuse used mainly for short-circuit and overload protection of low-voltage DC circuits and equipment. Its application field includes DC power supplies, consumer electronics, computers, communication systems, automotive applications, and industrial process control equipment.
The operation principle of the 0242.125UR fuse is based on the Joule effect. When the current in the circuit is higher than the rated current, the temperature of the fuse rises due to the Joule effect, and the fuse melts, making the circuit open, thus providing protection for the circuit and equipment. When the current in the circuit is lower than the rated current, the fuse will not melt, thus protecting the circuit from being broken.
In addition, the 0242.125UR fuse also has a self-resetting function, which is realized by using a thermal bimetal switch to reset the fuse. When the current in the circuit is lower than the rated current, the bimetal switch will reset the fuse to its original state automatically.
Overall, the 0242.125UR fuse is an important fuse used in low-voltage DC circuits and equipment and its working principle is based on the Joule effect. It has self-resetting and overload and short-circuit protection functions, making it an ideal fuse for many applications.
The specific data is subject to PDF, and the above content is for reference
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