The B0503S-1W is a single-phase, surface-mount, SIP (Single In-line Package) RoHS power module, manufactured by NI-BOXING. It is mainly used for power conversion purpose and it can work on up to 50V DC input voltage and deliver up to 3W of output power. It features wide input voltage ranges, low standby power consumption, low consumption current, high efficiency, and long service life. The unit is RoHS-compliant and comes equipped with several product-specific features such as over-voltage protection, over-current protection, short-circuit protection, and thermal protection for enhanced thermal performance. It is designed to meet various demands of industrial applications as well as for commercial use.