MF-USMF110-2 Circuit Protection |
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| Allicdata Part #: | MF-USMF110-2TR-ND |
| Manufacturer Part#: |
MF-USMF110-2 |
| Price: | $ 0.00 |
| Product Category: | Circuit Protection |
| Manufacturer: | Bourns Inc. |
| Short Description: | PTC RESET FUSE 6V 1.1A 1210 |
| More Detail: | Polymeric PTC Resettable Fuse 6V 1.1A Ih Surface M... |
| DataSheet: |  MF-USMF110-2 Datasheet/PDF |
| Quantity: | 6000 |
| Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
| Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
| Resistance - Initial (Ri) (Min): | 50 mOhms |
| Approvals: | cURus, TUV |
| Lead Spacing: | -- |
| Thickness (Max): | 0.033" (0.85mm) |
| Height - Seated (Max): | -- |
| Size / Dimension: | 0.127" L x 0.102" W (3.22mm x 2.58mm) |
| Package / Case: | 1210 (3225 Metric), Concave |
| Mounting Type: | Surface Mount |
| Ratings: | AEC-Q200 |
| Operating Temperature: | -40°C ~ 85°C |
| Resistance - Post Trip (R1) (Max): | 210 mOhms |
| Series: | Multifuse®, MF-USMF |
| Time to Trip: | 1s |
| Current - Trip (It): | 2.2A |
| Current - Hold (Ih) (Max): | 1.1A |
| Current - Max: | 40A |
| Voltage - Max: | 6V |
| Type: | Polymeric |
| Moisture Sensitivity Level (MSL): | -- |
| Part Status: | Active |
| Lead Free Status / RoHS Status: | -- |
| Packaging: | Tape & Reel (TR) |
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PTC Resettable Fuses
PTC resettable fuses, also known as a polyfuse, are a type of fuses that are used in circuits to protect against electrical shorts and overcurrents similar to normal fuses. However, unlike traditional fuses, they can be automatically reset when the current falls below a predetermined level. This type of fuse has two main types of application: overcurrent protection and overvoltage protection.
One specific example of a PTC resettable fuse is the MF-USMF110-2. This fuse is a bimetallic PTC resettable fuse that is intended for overcurrent protection applications. The two main features of this fuse are its high current rating and its fast-acting response. The MF-USMF110-2 is rated for currents up to 10 amps, and its response time is typically within 6 nanoseconds when the current has exceeded its rated value.
The main working principle behind a PTC resettable fuse is that of a bimetallic strip. This strip is constructed of two strips of metal bonded together. When a current is applied to the fuse, the two strips of metal expand at different rates, due to their different coefficients of thermal expansion. This causes the strip to bend and contact the terminal strip, which triggers the trip mechanism and cuts off the circuit.
The resetting of the fuse is done in a similar manner. When the current is reduced to below a certain threshold, the metals cool, allowing the strip to contract and disconnect from the server strip. This action resets the motion and restores the circuit.
In addition to its use in overcurrent protection, PTC resettable fuses can also be used in overvoltage protection applications. PTC resettable fuses may be used to protect circuits from voltage spikes, and the same principle of expansion and contraction of the bimetallic strip is used to trigger the trip mechanism and disconnect the circuit.
Overall, PTC resettable fuses are a useful alternative to traditional fuses in electronic circuits. They are able to automatically reset themselves when the current drops below a certain threshold, making them useful for protecting circuits from overvoltage and overcurrent conditions. The MF-USMF110-2 is an example of a specific PTC resettable fuse that is rated for currents up to 10 amps, and is designed for overcurrent protection applications.
The specific data is subject to PDF, and the above content is for reference
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