C4-K1.8L-EA C4-K1.8LEJ471 C4-K1.8LR-12U751DE C4K1.8R C4-K1.8R C4-K1.8R/6R8 C4-K1.8R100 C4-K1.8R-100 C4-K1.8R-100M C4-K1.8R-101