The TDK Group presents the new compact EPCOS E13EMHV series SMT transformers with high dielectric strength. The new series of components is suitable for a wide range of DC-DC converter topologies, with electrical isolation distances in accordance with IEC 60664-1, 61558-2-16 standards, up to 1000 V DC operating voltage, and withstanding transient overvoltages up to 2500 Vpeak , and the withstand voltage between the primary side and the secondary side is up to 3000 V AC (50 Hz, 60 seconds).
Among them, the size of the B78308*A003 transformer is only 12.9 x 15.8 x 11.4 mm, which can greatly save space, and the internal structure is compact, which meets the IEC 60664-1 standard (Np/Ns: The minimum space distance is 8.14 mm, and the minimum creepage distance is 8.14 mm). 11.2 mm) requirements for clearance and creepage distances.
Among the new components, two types are suitable for flyback DC-DC converters with turns ratios of 1 : 0.22 : 0.78 and 1 : 0.33 : 0.7, and three types are suitable for use with turns ratios of 1 : 1.07 and 1 : 1, respectively. : 0.57 : 2.14 for push-pull and half-bridge converters. The transformers are designed for a frequency range of 100 kHz to 500 kHz, have coupling capacitances as low as 2 pF, and allow an operating temperature range of -40 °C to +150 °C. In addition, the components of the new EPCOS transformer family are AEC-Q200 Rev. D qualified and suitable for a wide range of DC-DC converter topologies and gate driver circuits in electric vehicles and industrial electronics.
