A new SMD power ferrite has been designed for high current applications. The new WE-MPSB series are high-performance SMD power ferrites utilizing multilayer technology. They were designed specifically for the suppression of electromagnetic interference in power supplies and DC/DC converters. In contrast to common SMD ferrites, these components provide high impedance even at high nominal currents.
The series includes eleven components in sizes 1612, 1812, 2220 and 3312 for nominal currents of up to 10 A. A high impedance of up to 550 Ω is achieved at a frequency of 100 MHz. The 1612 design features a low RDC of 0.004 Ω, which works for power supplies.
Würth Elektronik specifies a temperature range from –55 to +125 °C.