The BSMD1812-200-30V is a resettable fuse manufactured by BHFUSE. It has an operating voltage of 30 volts and can handle currents up to 2A, 40A, and 4A, respectively. This RoHS compliant resettable fuse is built with an 1812 size and has an overall rating of 200V. It is designed to provide overcurrent and over voltage protection, and is suitable for use in various industrial applications.