The 270 ohms (1/2 watt) resistor is a low-resistance component designed to handle up to 0.5 watts of power. With a resistance of 270 ohms, it is used in electronic circuits to limit current, divide voltages, and ensure proper circuit operation. Its 1/2-watt power rating allows it to manage moderate power dissipation without overheating, making it ideal for applications such as current limiting in LEDs, signal conditioning, and general-purpose use where reliable performance and moderate power handling are required.