Carbon Resistor 0.25W 30K Ohm
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Prices updated: 12 Oct 2026
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About this product
Carbon resistor rated 0.25 W at 30 kΩ. A common through-hole part for general electronics, used for current limiting, voltage dividers, pull-up and pull-down networks, and transistor biasing in hobby and student circuits.
Specifications
- Resistance
- 30 kΩ (30K Ohm)
- Power rating
- 0.25 W
- Type
- Carbon
- Colour code
- Orange, Black, Orange
Frequently asked questions
What are the colour bands for this value?
Orange, black and orange are the first three bands, giving 30 x 1000 = 30 kΩ. A tolerance band follows. Confirm the code with a colour-code chart before soldering.
Is 0.25 W enough for my circuit?
For low-power signal and bias circuits, yes. Calculate the dissipation with P = V²/R or P = I²×R and keep it well below 0.25 W. Use a higher-wattage resistor for larger loads.
