MF-R500
Product Overview
Category: Electronics
Use: Overcurrent Protection
Characteristics: Resettable Fuse
Package: SMD
Essence: Polymer PTC Resettable Fuse
Packaging/Quantity: Reel
Specifications
- Hold Current: 5A
- Trip Current: 10A
- Voltage: 30V
- Operating Temperature: -40°C to +85°C
- Dimensions: 3.0mm x 1.6mm x 0.9mm
Detailed Pin Configuration
The MF-R500 has two pins, one on each end of the device. The pin configuration is as follows: - Pin 1: Connected to the positive terminal of the circuit - Pin 2: Connected to the negative terminal of the circuit
Functional Features
- Overcurrent Protection: Automatically resets when fault condition is removed
- Small Size: Compact design for space-constrained applications
- Fast Response Time: Quickly reacts to overcurrent conditions
Advantages and Disadvantages
Advantages: - Resettable: Eliminates the need for replacement fuses - Reliable: Provides consistent overcurrent protection - Space-Saving: Small form factor for densely populated PCBs
Disadvantages: - Limited Voltage Rating: Suitable for low voltage applications - Trip Current Variability: May have slight variations in trip current
Working Principles
The MF-R500 operates based on the principle of a polymer PTC (Positive Temperature Coefficient) resettable fuse. When an overcurrent condition occurs, the resistance of the PTC material increases, limiting the current flow. Once the fault is removed, the PTC material cools down and returns to its low-resistance state.
Detailed Application Field Plans
The MF-R500 is commonly used in various electronic devices and systems, including: - Consumer Electronics: Smartphones, tablets, and portable electronic devices - Automotive Electronics: On-board electronics and control systems - Industrial Equipment: Control panels, power supplies, and automation systems
Detailed and Complete Alternative Models
- MF-R005: 0.05A hold current, 0.1A trip current, 30V voltage rating
- MF-R020: 0.2A hold current, 0.4A trip current, 30V voltage rating
- MF-R110: 1.1A hold current, 2.2A trip current, 30V voltage rating
In conclusion, the MF-R500 is a compact and reliable resettable fuse designed for overcurrent protection in various electronic applications. Its small size, resettable nature, and fast response time make it a preferred choice for modern electronic designs.
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10個與MF-R500在技術方案中應用相關的常見問題與解答
Sure, here are 10 common questions and answers related to the application of MF-R500 in technical solutions:
Q: What is MF-R500? A: MF-R500 is a type of polymer positive temperature coefficient (PPTC) resettable fuse, designed to protect against overcurrent and overtemperature conditions in electronic circuits.
Q: What are the typical applications of MF-R500? A: MF-R500 is commonly used in battery packs, power supplies, automotive electronics, and industrial control systems to provide overcurrent protection.
Q: How does MF-R500 work? A: When an overcurrent condition occurs, the resistance of MF-R500 increases rapidly, limiting the current flow and protecting the circuit. Once the fault is removed and the temperature decreases, MF-R500 resets itself.
Q: What are the key features of MF-R500? A: MF-R500 offers low resistance, fast response time, high hold current, and compact size, making it suitable for various space-constrained applications.
Q: Can MF-R500 be used in automotive applications? A: Yes, MF-R500 is suitable for automotive applications, including battery management systems, motor controls, and lighting systems, where overcurrent protection is essential.
Q: Is MF-R500 RoHS compliant? A: Yes, MF-R500 complies with the Restriction of Hazardous Substances (RoHS) directive, ensuring its environmental friendliness.
Q: What is the maximum operating voltage of MF-R500? A: The maximum operating voltage of MF-R500 is typically around 60V, making it suitable for low to medium voltage applications.
Q: Can MF-R500 be used in high-temperature environments? A: Yes, MF-R500 is designed to operate reliably in high-temperature environments, with some variants capable of withstanding temperatures up to 125°C.
Q: Are there any recommended soldering guidelines for MF-R500? A: Yes, it is recommended to follow the manufacturer's guidelines for soldering MF-R500 to ensure proper electrical and mechanical connections.
Q: How can I select the right MF-R500 model for my application? A: Consider factors such as the maximum operating voltage, hold current, trip current, and ambient temperature of your application to select the most suitable MF-R500 model.
I hope these questions and answers are helpful! Let me know if you need further assistance.