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MF-MSMF125-2
Product Overview
The MF-MSMF125-2 belongs to the category of resettable fuses and is commonly used for overcurrent protection in electronic circuits. These fuses are characterized by their ability to automatically reset after the fault condition is removed, making them suitable for applications where frequent power cycling occurs. The package typically consists of a surface mount device (SMD) with a specified quantity per reel.
Specifications
- Voltage Rating: 30V
- Current Rating: 1.25A
- Hold Current: 1.25A
- Trip Current: 2.5A
- Max Voltage: 60V
- Operating Temperature Range: -40°C to +85°C
Detailed Pin Configuration
The MF-MSMF125-2 features a standard SMD pin configuration with two terminals for easy integration into circuit boards.
Functional Features
- Automatic reset after fault removal
- Fast time-to-trip response
- Surface mount design for space-saving installation
Advantages and Disadvantages
Advantages: - Automatic reset reduces maintenance requirements - Fast response time protects sensitive components - Space-saving SMD design
Disadvantages: - Limited maximum voltage rating - May not be suitable for high-power applications
Working Principles
The MF-MSMF125-2 operates based on the principle of positive temperature coefficient (PTC) resistance. When an overcurrent condition occurs, the PTC material heats up, causing its resistance to increase and effectively limiting the current flow. Once the fault is removed, the PTC material cools down, allowing the fuse to reset.
Detailed Application Field Plans
The MF-MSMF125-2 is commonly used in various electronic devices and equipment, including: - Consumer electronics - Power supplies - Battery management systems - Automotive electronics
Detailed and Complete Alternative Models
- Bourns MF-R025/72-2
- Littelfuse 1812L125/24DR
- Bel Fuse 0ZCM0125FF2E
This comprehensive range of alternative models provides flexibility in selecting the most suitable resettable fuse for specific application requirements.
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What is the MF-MSMF125-2?
- The MF-MSMF125-2 is a resettable fuse designed to protect against overcurrent and overtemperature conditions in electronic circuits.
What is the maximum voltage and current rating of the MF-MSMF125-2?
- The MF-MSMF125-2 has a maximum voltage rating of 30V and a maximum current rating of 1.25A.
How does the MF-MSMF125-2 work?
- The MF-MSMF125-2 operates by using a polymer-based PTC (positive temperature coefficient) material that increases resistance when exposed to overcurrent or overtemperature conditions, effectively limiting the current flow.
What are the typical applications of the MF-MSMF125-2?
- The MF-MSMF125-2 is commonly used in battery packs, power supplies, and other electronic devices to provide overcurrent protection.
Is the MF-MSMF125-2 reusable?
- Yes, the MF-MSMF125-2 is a resettable fuse, meaning it can return to its normal operating state after the fault condition is removed.
What is the hold current of the MF-MSMF125-2?
- The hold current of the MF-MSMF125-2 is typically 1.25A, at which the device will remain in a low-resistance state.
Can the MF-MSMF125-2 be used in automotive applications?
- Yes, the MF-MSMF125-2 is suitable for use in automotive electronics, provided it meets the specific requirements and standards for automotive components.
What is the response time of the MF-MSMF125-2?
- The response time of the MF-MSMF125-2 is very fast, typically within milliseconds, to protect the circuit from overcurrent events.
Does the MF-MSMF125-2 require any special mounting considerations?
- The MF-MSMF125-2 can be surface-mounted or through-hole mounted, depending on the specific application and design requirements.
Are there any derating considerations for the MF-MSMF125-2?
- It is important to consider ambient temperature and airflow when using the MF-MSMF125-2 to ensure it operates within its specified temperature limits.