是可控硅.用在电焊机上,我司还有电焊机用的IGBT模块
500) {this.resized=true; this.width=500; this.alt='这是一张缩略图,点击可放大。\n按住CTRL,滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/55/781961183960553.gif');}" onmousewheel="return imgzoom(this);">