1-watt fuse resistor is a type of resistor that combines the functions of a fuse and a resistor in a single component. Here’s how it works and what it’s used for:
Key Characteristics
- Rated Power: 1 watt – This means it can dissipate up to 1W of power under normal operation.
- Fuse Function: If the current exceeds a certain threshold, the resistor will blow like a fuse and create an open circuit, protecting the rest of the circuit.
- Resistance Value: Available in different resistance values, depending on the circuit’s needs.
- Construction: Typically made from materials that allow it to function as both a resistor and a fuse (like metal film or wire-wound).
How It Works
- Under normal conditions, it behaves like a regular resistor, limiting current according to its resistance value.
- If the current exceeds a dangerous level (due to a fault or short circuit), the resistor will overheat and break the circuit to prevent damage to other components.
Common Uses
✅ Overcurrent protection in power supplies
✅ Protecting sensitive electronics
✅ Audio equipment
✅ Industrial and automotive circuits
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