TT Electronics RC Series 0.25W 549R Metal Film Resistor 0.1%

The TT Electronics RC Series 549R Metal Film Resistor is a high-precision electronic component designed for applications demanding exceptional accuracy and stability. With an extremely tight tolerance of ± 0.1%, it provides reliable and predictable performance in sensitive circuits. The resistor features a robust axial leaded package, making it suitable for through-hole PCB assembly and other point-to-point wiring tasks.

Constructed using advanced metal film technology, this component offers superior performance over carbon composition types, including lower noise, better temperature stability, and higher precision. Its power rating of 250mW (0.25W) makes it suitable for low-power signal conditioning, measurement, and reference circuits. The device is rated for a maximum working voltage of 200V.

Environmental resilience is a key feature, with an impressive operational temperature range from -55°C to 155°C. This allows for reliable function in both industrial and consumer electronics exposed to varying conditions. The resistor also boasts a low temperature coefficient of ± 15ppm/°C, meaning its resistance value changes minimally with temperature fluctuations, ensuring circuit stability.

Supplied individually, this high-quality resistor from the reputable TT Electronics/Welwyn brand is an essential component for prototyping, repair, and production of precision analogue equipment, test instrumentation, and audio devices where exact resistance values are critical.