This document describes an RC unit, which belongs to the X2 class and utilizes metallized paper and an integrated resistor. The product has a rated voltage of 250VAC, a capacitance range of 0.047-0.47µF, a resistance range of 22-470Ω, and can operate in a temperature range of -40 to +85°C. It is suitable for DC and AC applications, used for contact protection, interference suppression, and transient suppression.