买了一批ka5H0380封装与原来的有点不同,有2个露出铜的洞.不知真假.TO-220F-3Pin是有这两个孔,不知是否改模具了.请告知是否可信.
原
![](http://u.dianyuan.com/bbs/u/74/187461235526670.gif)
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/74/187461235526670.gif');}" onmousewheel="return imgzoom(this);">
新
![](http://u.dianyuan.com/bbs/u/74/187461235526751.gif)
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/74/187461235526751.gif');}" onmousewheel="return imgzoom(this);">