The B1205S-1W Electronic Part Power Module SIP-4 RoHS manufactured by RLT is a lead-free (RoHS compliant) power module designed for use in numerous electronic applications. It is a 4-pin single-phase module with a maximum current rating of 1.2 A, maximum peak forward surge current of 40 A, and a maximum total peak power dissipation rate of 12 W. The module has an operating temperature range of -40 to +85 degrees Celsius and is housed in a compact SIP (Single In-line Package) package for easy installation in tight space constraints. The module features a low-profile design and is suitable for on-board DC-DC converters and high-voltage step-down applications. It comes with an over-voltage, over-current, and short-circuit protection function, as well as a built-in EMI filter to reduce electrical noise. It also has a broad range of surge and inrush current capabilities.