RXEF300K
Product Overview
Belongs to: Electronic Components
Category: Resettable Fuse
Use: Overcurrent Protection
Characteristics: Resettable, Polymer PTC
Package: Radial Leaded
Essence: Provides overcurrent protection in electronic circuits
Packaging/Quantity: Bulk packaging, quantity varies
Specifications
- Voltage Rating: 30V
- Current Rating: 3A
- Hold Current: 3A
- Trip Current: 6A
- Max Voltage: 60V
- Resistance: 0.1Ω
Detailed Pin Configuration
The RXEF300K has two radial leads for easy through-hole mounting.
Functional Features
- Resettable: Automatically resets after fault is cleared
- Overcurrent Protection: Safeguards electronic circuits from excessive current
- Polymer PTC: Utilizes polymer positive temperature coefficient material for reliable performance
Advantages and Disadvantages
Advantages: - Resettable functionality reduces maintenance and replacement costs - Provides reliable overcurrent protection - Polymer PTC ensures consistent performance
Disadvantages: - Limited maximum voltage rating of 60V - May not be suitable for high-power applications
Working Principles
The RXEF300K operates based on the principle of a polymer positive temperature coefficient (PTC) material. When an overcurrent condition occurs, the PTC material heats up, causing its resistance to increase and limit the current flow. Once the fault is cleared, the PTC material cools down and resets, allowing normal operation to resume.
Detailed Application Field Plans
The RXEF300K is commonly used in various electronic devices and equipment, including: - Consumer electronics - Power supplies - Battery packs - Automotive electronics - Industrial control systems
Detailed and Complete Alternative Models
- RXEF110: 11V, 1.1A
- RXEF250: 25V, 2.5A
- RXEF500: 50V, 5A
- RXEF750: 75V, 7.5A
In conclusion, the RXEF300K resettable fuse offers reliable overcurrent protection in electronic circuits with its polymer PTC technology. While it has limitations in terms of maximum voltage and power handling, its resettable nature and consistent performance make it a valuable component in various applications.
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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av RXEF300K i tekniska lösningar
Sure, here are 10 common questions and answers related to the application of RXEF300K in technical solutions:
Q: What is the maximum voltage rating of RXEF300K? A: The maximum voltage rating of RXEF300K is 72V.
Q: What is the hold current of RXEF300K? A: The hold current of RXEF300K is 3A.
Q: Can RXEF300K be used for overcurrent protection in automotive applications? A: Yes, RXEF300K is suitable for overcurrent protection in automotive applications.
Q: What is the operating temperature range of RXEF300K? A: The operating temperature range of RXEF300K is -40°C to 85°C.
Q: Is RXEF300K RoHS compliant? A: Yes, RXEF300K is RoHS compliant.
Q: Can RXEF300K be reset after tripping? A: No, RXEF300K is a one-time, non-resettable fuse.
Q: What is the typical resistance of RXEF300K when it is in the tripped state? A: The typical resistance of RXEF300K in the tripped state is very low, typically less than 0.1 ohms.
Q: Can RXEF300K be used for overcurrent protection in battery management systems? A: Yes, RXEF300K is suitable for overcurrent protection in battery management systems.
Q: What is the response time of RXEF300K to an overcurrent event? A: The response time of RXEF300K to an overcurrent event is very fast, typically within microseconds.
Q: Can RXEF300K be soldered onto a PCB? A: Yes, RXEF300K can be soldered onto a PCB using standard surface mount soldering techniques.
I hope these questions and answers are helpful for your technical solutions involving RXEF300K. Let me know if you need further assistance!