The 20Ω 5W wire-wound resistor is a high-power, high-stability resistor designed for applications requiring accurate resistance and reliable heat dissipation. It is constructed using a resistive wire wound on a ceramic core and coated for mechanical strength and thermal stability, making it suitable for power and load-handling circuits.
Key Features
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Wire-wound construction for high power handling
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Rated power dissipation of 5W
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Stable resistance over a wide temperature range
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Low noise and good surge current tolerance
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Flame-retardant, heat-resistant coating
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Axial leaded design for easy mounting
Technical Specifications
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Resistance value: 20 ohms
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Power rating: 5W (at rated ambient temperature)
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Tolerance: typically ±5% (±1% available on some variants)
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Temperature coefficient: low, suitable for power circuits
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Construction: ceramic core with resistive wire winding
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Lead material: tinned copper
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Body type: cement / ceramic coated
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Operating temperature range: –55°C to +155°C
Electrical Characteristics
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High overload and pulse handling capability
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Suitable for continuous power dissipation with adequate airflow
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Resistance value remains stable under thermal stress
Compatibility
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Power supplies and regulators
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Motor drive and braking circuits
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Current limiting and load resistors
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Audio amplifiers and power electronics
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