从申请到收到样品,时间不知不觉就过去了
![](static/image/smiley/default/smile.gif)
一、不多说,上正文前传
![](static/image/smiley/default/titter.gif)
1、样品参数图片
![Screenshot_20200731_104656_com.tencent.mm.jpg Screenshot_20200731_104656_com.tencent.mm.jpg](https://static.assets-stash.eet-china.com/forum/202008/06/195801grbhqi3tcqfqrqrf.jpg)
2、收到样品图片,样品数量不多但测试够用了
![](static/image/smiley/default/smile.gif)
![IMG_20200731_104503.jpg IMG_20200731_104503.jpg](https://static.assets-stash.eet-china.com/forum/202008/06/195952doe8ozaoy1b15y3o.jpg)
![IMG_20200731_105340.jpg IMG_20200731_105340.jpg](https://static.assets-stash.eet-china.com/forum/202008/06/204451etsa46z9isqqtzac.jpg)
二、正文:精密贴片电阻CSFR3518FR010Q9用于开关电路电流反馈控制。
1、话说目前正在进行测试板使用的插件电阻正好这个样
![IMG_20200806_171610.jpg IMG_20200806_171610.jpg](https://static.assets-stash.eet-china.com/forum/202008/06/200344lkxp2cknuvxcx4eu.jpg)
二话不说马上换上样品贴片电阻
![IMG_20200806_190839.jpg IMG_20200806_190839.jpg](https://static.assets-stash.eet-china.com/forum/202008/06/200506j9i8twtrc9r9qdua.jpg)
2、测试过程
1W预热,10A负载电流几分钟,温度58摄氏度(手机上怎么倒过来了)
![IMG_20200806_191326.jpg IMG_20200806_191326.jpg](https://static.assets-stash.eet-china.com/forum/202008/06/201416nwwi2kooojlze6o1.jpg)
上50%的额定负载16A,温度马上到90多,测试稳定95左右,温升还算还算OK。
![88.jpg 88.jpg](https://static.assets-stash.eet-china.com/forum/202008/06/202438yo6zcotox5ctt9k9.jpg)
三、测试结论:满功率测试温度瞬间可达到160多,虽还在参数内,但还是太高了。
可以替换原来物料测试,后面有时间再具体进行。