The EQ20/R-3C95 is a Transformer Core made with material grade of 3C95. The EQ core design is derived from the ER and PQ. The range is optimized for use in compact AC/DC notebook adapters and DC/DC converters. The advantages of EQ core are a simple core shape, round centre pole, high Ae value, a large winding window, low profile and a large surface area for heat dissipation.