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定值电阻的规格是什么意思

更新时间: 2021-02-19 11:07:00     

1、规格一般是指其外部尺寸,问例如0805规格,答0603规格。4.7R或者4.7K这个是电阻的标称阻值,回R=欧姆=Ω,4.7R=4.7R=4.7欧姆=4.7Ω,4.7K(R被省略了答)=4.7kR=4700欧姆=4700Ω。

2、定值电阻从出厂即为固定阻值,具体参数一般可以在电阻本身看到。

关键词: 电阻 规格 什么 意思

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