SMD R2512 1W Power Resistor 300K ±1% (Marking 304)
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Prices updated: 13 Oct 2026
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About this product
A 1 W SMD power resistor in the R2512 package, rated for 300 kΩ with ±1% tolerance, a 100 ppm/°C temperature coefficient and an operating range of -55 to 155 °C. Suited to high-value bias, divider and feedback networks in power electronics where a higher power rating than 0805 or 1206 parts is needed.
Specifications
- Package
- R2512
- Power rating
- 1 W
- Resistance
- 300 kΩ
- Tolerance
- ±1%
- Temperature coefficient
- 100 ppm/°C
- Operating temperature
- -55 to 155 °C
- SMD marking
- 304
Frequently asked questions
How do I read the SMD marking on this resistor?
The first two digits are significant figures and the third is the power of ten, in ohms. Marking 304 means 30 × 10⁴ = 300 kΩ.
Can I use it to replace a smaller resistor?
Electrically yes, if the value matches and the dissipation stays within 1 W. The R2512 footprint is larger than 0805 or 1206, so check the PCB pads before fitting it.