UL1412 Approved 5W Flameproof Fusible Wire Wound Resistor for Circuit Protection

• High power, small body size.
• Suitable for protecting circuit boards. Noncombustible insulating coating; solvent-proof and resistant to high temperatures.
• Low temperature coefficient. Uniform in fusing time.
• UL 1412 approved.

The FKN 5WS is a flameproof, fusible wire-wound resistor that integrates resistance and fusible protection. Utilizing a non-flammable insulating coating and winding structure, it reliably fuses within a specified time in the event of abnormal overcurrent or faults, effectively protecting PCBs, power modules, and electronic equipment.

With UL1412 certification, low temperature coefficient, high insulation performance, and stable fusing characteristics, this product is widely used in switching power supplies, power adapters, industrial control equipment, home appliance control boards, and various electronic systems requiring safety protection designs. For European and American buyers seeking fusible resistor manufacturers, fusible wire wound resistor suppliers, or safety resistor manufacturers, the FKN series offers circuit protection solutions that balance safety and reliability.

Power Supply and Energy Equipment

• AC/DC Switching Power Supplies
• Power Adapters
• LED Drivers
• Charger Modules

Industrial Control Systems

• PLC Control Equipment
• Industrial Automation Control Boards
• Motor Drive Systems
• Power Control Equipment

Consumer Electronics

• Smart Home Appliance Control Boards
• Small Home Appliance Power Modules
• Smart Device Power Supply Systems

Circuit Protection Applications

• PCB Protection Design
• Input Surge Protection
• Power Start-up Protection
• Safety Fusible Circuits

The FKN 5WS flameproof fusible resistor features a stable winding structure and non-flammable insulating coating, ensuring consistent fusing performance under abnormal operating conditions. Its temperature coefficient is below ±300ppm/℃, insulation resistance exceeds 1000MΩ, and it is UL1412 certified, meeting the stringent requirements of the European and American markets for high-reliability electronic components and circuit safety protection.