The RG series and the ultra high-reliability URG series resistors are ideal for applications that require extreme precision and reliability, such as industrial instrumentation, test and measurement equipment, automotive electronics, and laboratory-grade scales. The URG and RG-LL series resistors boast the industry’s best absolute tolerance of resistance of ±0.01%, and the lowest temperature coefficient of resistance (TCR), at ±2 ppm/°C.
The resistors’ thin-film construction offers various advantages such as low current noise, ranging from -25 dB to -35 dB, and support for high-frequency operation up to 1 GHz. In the URG series in particular, the resistors also offer a highly linear TCR specification.
The RG series resistors offer excellent reliability, and the URG devices’ reliability is even better. For example, the maximum drift over 2,000 hours of operation at 70°C is ±0.02% for the URG resistors, and ±0.05% for the RG parts. Humidity bias drift is ±0.05% after 2,000 hours for the URG and ±0.1% for the RG resistors. The URG series is also highly stable under any environmental conditions including exposure to atmospheric sulfur.
100 thermal cycles:
100 hours at 155°C:
