The ERT-J1VA101J is a multilayer NTC (Negative Temperature Coefficient) thermistor from the ERTJ series, designed for temperature sensing and compensation. It provides a nominal resistance of 100 Ω at 25°C with a tolerance of ±5% and a B-value of 2800 K (25/50°C). This 0603 size surface-mount device operates over a wide temperature range from -40°C to 125°C and has a rated maximum power dissipation of 100 mW. Its highly reliable monolithic structure makes it suitable for applications such as temperature compensation for semiconductor devices and temperature detection in CPUs and battery packs.