Slab cores are modified pot cores with the sides removed. The slabs can be paired with one round half of a standard pot core (RS combination) or two slabs can be paired together for a double slab (DS combination). The RS geometry offers all the advantages of pot cores for filter applications, plus many additional features for power applications. DS cores accommodate large size wire and assist in removing heat from the assembly. Typical applications for RS-DS combinations include; low and medium power transformers, switched-mode power supplies, and converter and inverter transformers.
Industry standard RS-DS core sizes include: 14/08, 18/11, 23/11, 23/18, 26/16, 30/19, 36/22, 42/29