RXF21 1WS 3.3R 5% Fusible Resistor - Current-Limiting Safety Device for Chargers & Power Supplies

The RXF21 1WS 3.3R 5% FRKNP is a safety-certified current-limiting fusible resistor designed for reliable overcurrent protection in power supply applications. This alloy wire resistor combines resistance functionality with fuse protection in a single compact component.

• Non-combustible coating with excellent insulation properties
• Superior anti-instantaneous pulse current characteristics
• Excellent lightning strike resistance and surge protection
• Consistent fuse timing and uniform performance
• Compatible with AC and DC low power low frequency circuits
• Operates effectively across high and low temperature ranges
• Complies with national fuse standard GB9364.4-2006/IEC 60127-4:1996
• Custom specifications available upon request

• Rated Power: 1/6W to 3W
• Resistance Range: 0.1Ω to 300KΩ
• Resistance Tolerance: ±1%, ±2%, ±5%, ±10%
• High precision with low noise characteristics
• Low temperature coefficient for stable performance
• Flame proof painting for enhanced safety

• Chargers, adapters, and lighting drives
• Power supply devices and telecommunications equipment
• Surge pulse protection and lightning strike protection systems
• Household appliances and motor controller systems
• Automotive electronics and power tools
• Rectifiers, inverters, and battery chargers