【应用】力特125V/5A特快熔型保险丝用于5G模组电源输入过流防护，有助于小型化设计

时间： 2021-02-07 来源：世强

代理服务

技术支持

现货查询

批量订货

5G模组一般需要多种不同规格的电源模块供电，为避免5G模组电源输入因后级短路异常出现可燃风险，建议在电源输入母线上加入快熔保险丝做过流保护设计，考虑到电源输入电压范围一般为5~75V，可选择常规125V耐压的保险丝，同时，而额定输入电流一般在2.5A左右，选择额定工作电流为4A的保险丝即可；

针对如上的设计需求，推荐选择LITTELFUSE（力特）特快熔型保险丝 0453004.MR，额定电压为125VAC/VDC，额定电流为4A，推荐理由如下：

1、常温25℃条件下的正常冷却阻值为16mΩ，自损耗很小；

2、工作温度范围-55℃~125℃，适用于极端低温环境工作；

3、采用表面贴装设计，典型封装尺寸6.1x2.69mm，可节省PCB占板空间；

4、具有出色的快速的响应能力，在2倍过流的情况下，最大熔断时间仅5s，相关过流特性参数可参考如下图1所示。

图1：littelfuse（力特）快熔保险丝0453004.MR过流电性参数

5、具有良好的供货交期，可以快速支持样品和量产服务。

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dylen Lv7. 资深专家 2021-02-07

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夏拉 Lv7. 资深专家 2021-02-07

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451/453 Series Fuse Surface Mount Fuses

型号- 045101.5MRSN,045101.6MRL,0451.500MRSN,0451004.MRSN,04533.15MR,0451.200MRSN,0453004.MR,0451.100MRL,0451.375MRSN,0453007.MR,0451002.MRL,0451003.MRSN,0453.400MR,0451.630MRL,0453.630MR,0451.160MRSN,0451.315MRL,0451010.MRL,0451.200MRL,0453010.MR,0453.062MR,0451.250MRL,0453.750MR,0451007.MRL,045302.5MR,0451020.MRSN,0453.160MR,0451012.MRL,0451.800MRSN,0453.800MR,0451001.MRSN,0451.125MRL,0451.400MRL,0451005.MRL,0451007.MRSN,045306.3MR,0451.750MRL,0451.400MRSN,0453012.MR,0451.125MRSN,045106.3MRSN,045101.5MRL,0451003.MRL,0453.100MR,04513.15MRSN,04511.25MRSN,0453001.MR,0451020.MRL,0451010.MRSN,0453015.MR,045106.3MRL,0451.062MRL,04531.25MR,0451012.MRSN,453 SERIES,0451001.MRL,0451.250MRSN,0451.080MRSN,045102.5MRL,045301.5MR,0451.315MRSN,045101.6MRSN,0453020.MR,0451008.MRL,045303.5MR,0453.500MR,0451.800MRL,0451.080MRL,0451.100MRSN,0453003.MR,04513.15MRL,0451.750MRSN,045103.5MRL,451 SERIES,0453.315MR,0451015.MRSN,045301.6MR,0453002.MR,0451.160MRL,0451015.MRL,0451.500MRL,045103.5MRSN,0451.062MRSN,0451.630MRSN,0453.080MR,0453.375MR,045102.5MRSN,0451008.MRSN,0453.250MR,0451005.MRSN,0453005.MR,0451002.MRSN,0453008.MR,0451.375MRL,0453.200MR,0451004.MRL,04511.25MRL,0453.125MR

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型号- 045101.5MRSN,045101.6MRL,0451.500MRSN,0451005.NRL,0451.100MRL,0451010.NRSN,0451002.MRL,0451003.MRSN,0453001.NRSN,0453015.NRSN,0451.160MRSN,0451010.MRL,0453020.NRSN,04533.15MRSN,0453.500NRSN,0453.062MRSN,0451.250NRSN,0451.250MRL,0453003.NRSN,04511.25NRSN,0451020.MRSN,0453.100MRSN,045301.5NRSN,045101.6NRSN,0451001.MRSN,045101.6NRL,0451005.NRSN,0451005.MRL,0451007.MRSN,0451.100NRL,045102.5NRL,045303.5MRSN,0451002.NRL,0451.400MRSN,0451.125MRSN,0453008.MRSN,045101.5MRL,0451.800NRL,0451012.NRSN,04511.25MRSN,0451.080NRL,0451.250NRL,0451010.MRSN,04513.15NRL,0453010.NRSN,0451.160NRSN,045302.5MRSN,0451.062MRL,0453.400NRSN,0451.630NRSN,0453.125NRSN,0451.250MRSN,0451.750NRL,0453003.MRSN,0453008.NRSN,045102.5MRL,0451.160NRL,0451.500NRL,0453007.NRSN,0451.800NRSN,045101.6MRSN,0451020.NRL,0451008.MRL,0451.100MRSN,04513.15MRL,0451003.NRSN,0451.375NRL,0453.800MRSN,045103.5MRL,0451004.NRL,0453004.MRSN,0451015.MRSN,0451.062NRL,045302.5NRSN,0451015.MRL,0451.160MRL,0451.500MRL,0453012.NRSN,0451010.NRL,0451008.NRL,0451.630MRSN,0451004.NRSN,0451005.MRSN,0451.375MRL,045303.5NRSN,0453.062NRSN,045103.5NRL,0451004.MRL,0451.062NRSN,0453002.NRSN,0453.250MRSN,0451008.NRSN,04513.15NRSN,0451004.MRSN,0451.100NRSN,0451.200MRSN,0451.375MRSN,0453.080MRSN,0453.315MRSN,0451015.NRL,045301.6MRSN,0453.800NRSN,0453.630NRSN,0451.630MRL,0451.315MRL,0451.200MRL,0451003.NRL,0453.750NRSN,0453.125MRSN,0453.400MRSN,0451007.MRL,04511.25NRL,0451012.MRL,0453.200NRSN,0453012.MRSN,0453007.MRSN,045106.3NRL,0451.800MRSN,0451.125MRL,0451.400MRL,0453.750MRSN,045102.5NRSN,045301.6NRSN,0451.750MRL,0451.630NRL,045306.3NRSN,0451.200NRL,0453004.NRSN,0451.315NRL,045106.3MRSN,0451015.NRSN,0453005.MRSN,0453002.MRSN,0451003.MRL,04513.15MRSN,0453.080NRSN,0451020.MRL,0451007.NRL,0453.315NRSN,0453.375NRSN,0453.630MRSN,045103.5NRSN,045106.3MRL,04533.15NRSN,0453.500MRSN,0451012.MRSN,0451.125NRL,0451.400NRL,0451001.MRL,0451002.NRSN,0451.080MRSN,0453.160MRSN,04531.25NRSN,0453.375MRSN,0453.100NRSN,0451.315MRSN,045101.5NRL,045301.5MRSN,0453.200MRSN,0451.500NRSN,0451.800MRL,0451.080MRL,045101.5NRSN,0451.200NRSN,0451.750MRSN,0453001.MRSN,0453020.MRSN,0453015.MRSN,0453005.NRSN,045106.3NRSN,0451001.NRL,451,453,0451.750NRSN,0453010.MRSN,045103.5MRSN,0453.250NRSN,0451001.NRSN,0451.062MRSN,0451008.MRSN,045102.5MRSN,0451020.NRSN,0451.375NRSN,0451007.NRSN,0453.160NRSN,0451002.MRSN,04531.25MRSN,0451.080NRSN,045306.3MRSN,0451.315NRSN,0451.400NRSN,0451012.NRL,04511.25MRL,0451.125NRSN

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