【应用】国产方型贴片保险丝SF331A060成功用于5G RRU宏基站的短路保护上,电压高达72VDC
随着5G技术的快速发展,对电源的功率要求也是越来越高,5G普遍的功率要比原来4G增加4倍左右,这样使得产品回路上的电流越来越大,如果不加以防护,一旦产品出现故障,其破坏性能量也是惊人的。所以在电源的主回路上都会加保险丝进行过流或短路方面的保护。
华北某化通信设备客户,其5G RRU宏基站的48V电源输入回路上就选用电安科技的SF331A060,贴片60A的保险丝。其电源设计波动范围在36-60VDC,平时工作电流30A,低压时电流在42A左右,考虑到UL型保险丝的选型余量,至少需要选56A的保险丝。电压方面其最高电压60VDC,我们SF331A060,耐压为72VDC。分断能力为600A,也满足客户的设计要求。此保险丝还有个优点是阻抗低,只有0.53mΩ左右,这样在温升方面相对传统插件保险丝的表现,也比较令人满意。
保险丝在产品应用中的位置:
SF331A060系列,外形如下图:
主要电气参数如下图:
特点如下:
1、电流10-100A可选
2、电压最高到72VDC(分断600A)
3、低阻抗,低温升,低压降设计
4、贴片11x4.5mm封装
5、通过UL认证,认证号为E509623
5、宽工作温度范围-55℃~+125℃
6、Rohs环保,无卤素、镀银镀金端子可选
7、可以按客户要求灵活定制
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本文由梁楚瑜转载自电安科技,原文标题为:【成功案例】电安科技中低压大电流方型贴片保险丝SF331A060成功应用于5G RRU宏基站的短路保护上,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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产品型号
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品类
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Vmax(V)
|
Imax(V)
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IH(A)
|
IT(A)
|
PD(W)
|
Ri min(Ω)
|
Package
|
0603N0040/24F000
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自恢复保险丝
|
24V
|
20V
|
0.04A
|
0.12A
|
0.5W
|
4Ω
|
0603
|
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在PTC加热器的输入端串了电安科技的MF552系列保险丝,用来对电路进行过流、短路保护。MF552系列陶瓷插件保险丝是电安科技推出的10x32mm,慢断250Vac的产品,其电流由40-100A可选,有两种安装方式,全系列通过UL认证,符合RoHS环保要求。
应用方案 发布时间 : 2024-04-22
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