MBR4045

MBR4045 is a dual Schottky barrier rectifier from Jilin Sino-Microelectronics (JSMC) in TO-247, rated 45 V repetitive peak reverse voltage and 40 A average forward current for the complete device, with 300 A surge capability and a typical forward drop of 0.47 V at 10 A. It serves high-current output rectification in power supplies and adapters where a Chinese domestic source with a long-running data sheet is preferred. Selection advice: JSMC publishes one data sheet (Rev. 201806B) for the bare MBR4045 name covering TO-220, TO-3PB, TO-247 and TO-220HF, and the bare name is the ordering base - state the package explicitly in your RFQ; its ratings differ from Vishay and onsemi parts of the same name, so do not cross-quote parameters between brands. Maximum junction temperature is 150 C. Parameters verified against the JSMC MBR4045 data sheet Rev. 201806B.