The HS300 0R27 F is a power resistor manufactured by Ohmite. It is part of the company's HS300 Series of resistors, which features a molded, non-inductive, wirewound construction for use in applications requiring high power and stability. The 0R27 F has a resistance of 27 ohms and can handle up to 300 watts of power with an ambient temperature range of -55 to +400°C. It has an operating temperature of -55 to +225°C, with an insulation voltage of 1000VAC and a relative humidity of up to 95%. Its features also include a low self-inductance, an absence of asbestos, and an improved high frequency response for audio applications.