Wirewound Resistor
A wirewound resistor is an electrical passive component that limits current. The resistive element is an insulated metallic wire that is wound around a core of non-conductive material. The wire material has a high resistivity, and is usually made of an alloy such as nickel-chromium (Nichrome) or a copper-nickel-manganese alloy called Manganin. Common core materials include ceramic, plastic, and glass. Wirewound resistors are the oldest type of resistors that are still manufactured today. They can be produced very accurately and have excellent properties for low resistance values and high power ratings.
| Power (Watt) | Composition | Tolerance | Resistance | Package | |
|---|---|---|---|---|---|
 | 1/2W | Wirewound | +-1%, +-5% | 0~10M ohm | Axial |
| 1W | Wirewound | +-1%, +-5% | 0~10M ohm | Axial |
| 2W | Wirewound | +-1%, +-5% | 0~10M ohm | Axial |
| 3W | Wirewound | +-1%, +-5% | 0~10M ohm | Axial |
| 5W | Wirewound | +-1%, +-5% | 0~10M ohm | Axial |
| 10W | Wirewound | +-1%, +-5% | 0~10M ohm | Axial |
| 15W | Wirewound | +-1%, +-5% | 0~10M ohm | Axial |