常用电子元器件的识别图解
2022-08-11 16:02
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370
source:
CassiLee
电阻在电路中用“R"加数字表示,
用)和阻抗匹配等。
电阻器的符号 参数识别:电阻的单位为欧姆(Ω),倍率单位有:千欧(kΩ)。
数标法主要用于贴片等小体积的电路,如103表示10000Ω(10后面加3个0)也就是10k.
二极管的主要特性是单向导电性,也就是在正向电压的作用下,导通电阻很小;而在反向电压作用下导通电阻极大或无穷大。
二极管的识别很简单,小功率二极管的N极(负极),有些二极管也用二极管专用符号来表示P极(正极)或N极(负极)。
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