The 5W4R7J is a 5-watt wire-wound ceramic cement power resistor with a resistance value of 4.7 ohms (4R7) and a tolerance of ±5% (J). It features a flame-resistant, heat-proof ceramic case designed to handle high current and thermal stress safely.

Key Specifications

• Resistance: 4.7Ω (indicated by 4R7 in the part number)
• Power rating: 5 watts, suitable for medium-power dissipation 
• Tolerance: ±5% (denoted by 'J')
• Temperature coefficient: Varies by type; typical values are 50 ppm/°C for wire-wound and +100 ppm/°C for thick film 
• Lead style: Axial/through-hole, suitable for PCB mounting or chassis installation 
• Mounting details: Wire-wound versions may include heatsinks or radiators for better heat dissipation, with mounting hole pitches around 11.3mm