绕线电感与叠层电感常见区分方式是什么呢?
绕线电感与叠层电感相信大家并不陌生,那么怎样对它们进行区分呢?常见区分方式是什么?本文索瑞达电子将为您进行介绍。
一、电感按照结构方式主要是:叠层电感和绕线电感
贴片叠层电感,铁氧体内部制作多层螺旋线,叠层电感,就是在铁氧体内部封装了多层线路,多层线路组成线圈。叠层电感体积小,常用物料最小可以做到0201的尺寸,且价格便宜,适合于小体积且要求不高的场景。之所以说要求不高,主要是因为叠层电感精度一般,Q值较低,通过的电流也不大,在一般的滤除杂波和射频匹配上用起来没什么问题。
叠层电感看起来跟贴片电容和电阻样子差不多,两端是焊盘,中间是灰色或者白色的长方体,看不到线圈。
二、普通绕线电感的三种类型
1、 磁芯外部缠绕漆包线
2、 超小型贴片绕线电感
3、封闭式绕线电感(灰白色方块)
绕线电感,就是在磁芯周围绕很多圈导线。这个工艺想想就比叠层电感复杂,所以常用的贴片绕线电感最小是0402的封装。小尺寸绕线电感通常用在射频电路上的,结合电容构成滤波器或匹配网络。
为了方便SMT生产的时候被吸嘴吸取,贴片绕线电感需要加一个平整的盖子,这个盖子一般是彩色的。蓝色的居多,也有红色黄色的,一眼看过去和不同电感明显不同。
同等尺寸的贴片绕线电感,比叠层电感贵接近10倍,但是Q值要好不少。Q值高的直接好处是滤波性能更好,很适合在射频电路上使用。
大尺寸的绕线电感一般作为储能器件使用,用于升压或者降压。也是一个磁芯周围绕线圈,但是线要粗很多,用来通过大电流。因感值大、Q值高、电流大,所以体积也要大不少。
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本文由犀牛先生转载自索瑞达电子 官网,原文标题为:绕线电感与叠层电感常见区分方式是什么呢?,本站所有转载文章系出于传递更多信息之目的,且明确注明来源,不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
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可定制车规级电感的电流范围0.3~17.9A,尺寸最小1x0.55x0.5mm到最大12.5x12.5x6mm,工作频率100KHz~2MHz,感值范围:0.47uH~4.7mH。符合IATF16949和AECQ-200。SPQ为5K。
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可定制电感最大电流100A,尺寸最小7 x 7 x 3.0mm到最大35 x 34 x 15.5 mm,工作频率100KHZ ~ 2MHZ,感值范围:0.15 ~ 100uh;支持大功率电感,扁平线电感,大电流电感,高频电感,汽车电感器,车规电感,一体成型电感等定制。
最小起订量: 5000 提交需求>
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