Resistor 51kΩ 3W
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Prices updated: 12 Oct 2026
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About this product
A 51 kΩ resistor with a 3 W power rating, intended for circuits that dissipate more heat than standard 1/4 W resistors can handle. Use it in voltage dividers, bias networks, or load paths where the power in the resistor is higher. Always calculate the dissipated power before selecting the rating.
Specifications
- Resistance
- 51 kΩ
- Power rating
- 3 W
Frequently asked questions
How do I choose between a 3 W and a 1/4 W resistor?
Calculate the power dissipated in the resistor using P = V²/R or P = I²R. Choose a power rating well above that value; if the calculated power is higher than 1/4 W, a higher-rated part is needed.
Does the power rating change the resistance value?
No. The resistance stays at 51 kΩ. The power rating only defines how much heat the resistor can safely dissipate.
