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/56/902411186055440.bmp');}" onmousewheel="return imgzoom(this);">场效应管内部的二极管和稳压管
请问有的场效应管内部D和S两极之间并联的是二极管,有的场效应管内部D和S两极之间并联的是稳压管,请问这两种场效应管在特性和应用上是不是一样的.还是有什么区别?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/56/902411186055440.bmp');}" onmousewheel="return imgzoom(this);">
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/56/902411186055440.bmp');}" onmousewheel="return imgzoom(this);">