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Composite fusible resistors are high-performance resistive devices that integrate resistance and overload protection mechanisms. The product utilizes a composite material encapsulation structure, automatically melting and cutting off the circuit when the current exceeds the rated value, effectively preventing overload damage to the circuit.
This resistor not only possesses stable current limiting and energy absorption capabilities but also rapidly disconnects the circuit under abnormal operating conditions, preventing damage to electrical equipment due to overcurrent. It is widely used in various devices such as household appliances, power systems, and instruments, providing long-term, reliable, and safe protection for electronic systems.
Product Parameter Overview
Item
Parameter Overview
Product Type
Composite Fuse Resistor
Lightning resistance
IEC 61000-4-5
Painting
Use light gray non-flammable paint (resistant to 800℃) or silicone resin coating.
Nominal Temperature
221°C
Material
Heat-resistant ceramic rod, tinned copper wire
Short Time Overload
16 times of rated wattage for 5 seconds ( ±2% )
Tensile strength
1 kg
Performance Characteristics
High Heat Resistance and Overload Protection The composite fuse resistor uses high-temperature heat-resistant materials, enabling stable operation in high-temperature environments and effectively withstanding instantaneous overloads, protecting the circuit from damage.
Precise Current Protection This resistor can quickly cut off the circuit when the current exceeds the rated value, preventing electrical system failure due to overload and ensuring safe equipment operation.
Low Temperature Drift and Stability The composite resistor has a low temperature coefficient, maintaining a stable resistance value under different environmental conditions, ensuring high reliability during long-term use.
Enhanced Safety Design Utilizing a non-flammable coating and high-temperature resistant materials, it effectively prevents fires or other safety hazards caused by overheating or short circuits.
Application Areas
Home Appliances and Consumer Electronics Composite fusible resistors are widely used in various home appliances and consumer electronic devices, including electric fans, air conditioners, and refrigerators. They effectively protect appliances from damage caused by current overload or short circuits, extending their service life.
Power Management Systems In power management systems, composite fusible resistors are used for overcurrent protection, ensuring stable operation of power modules and preventing circuit damage due to sudden current surges.
Instrumentation and Communication Equipment In precision instruments and communication equipment, composite fusible resistors ensure stable operation in harsh environments, preventing system failures or damage due to overcurrent or short circuits.
Power Tools and High-Precision Equipment Used in high-precision equipment such as power tools, battery management systems (BMS), and chargers, providing reliable overload protection and ensuring the safe operation of circuits and equipment.
