Open Mode TDK Open Mode is a type of MLCC in which the gap between the terminal electrode and the internal electrode on the opposing terminal electrode side (called L-Gap) is longer than that of regular products. By making the overlapping portion of the opposing internal electrodes shorter, it is ensured that the opposing electrodes do not overlap at places where cracks may occur. Due to this, the risk of short-circuit can be reduced even if cracks should occur.