SPW1518DJ SPW1522WA SPW1550COTR SPW15N120 SPW15N40C3 SPW15N60C3 SPW15N60C3 15N60C3 SPW15N60C3 MOSFET或IGBT开关IC SPW15N60C3(15N60C3) SPW15N60C3，15N60C3