The MWSA1004S-R30MT with Power Inductors 300nH ±20% SMD,10x11.5x4.0mm RoHS is an electronic component manufactured by Sunlord. It is a surface mount device (SMD) power inductor with a rated inductance of 300nH ±20%. The size of this device is 10x11.5x4.0mm and it is compliant with the RoHS directive. This component is designed to reduce noise and electromagnetic interference (EMI) in various electronic devices. It can be used in power conversion applications, such as DC-DC and AC-DC converters, to provide stable operation with low power loss.